Document:

<PAGE>   1

                                                                    EXHIBIT 10.1

                          CONSULTING SERVICES AGREEMENT

        This Agreement is entered into effective May 15, 2001 ("Effective
Date"), between Genetronics International, Inc. ("Genetronics"), a California
corporation located at 11199 Sorrento Valley Road, San Diego, CA 92121 and
Martin Nash, having an address at 2739 Inverness, La Jolla, CA 92037
("Consultant").

                                  I. BACKGROUND

1.1 Genetronics desires that Consultant provide consulting services to
Genetronics for the purpose of advising Genetronics management and scientific
staff on matters concerning various business matters arising while Consultant
was President and CEO or Genetronics ("Field").

1.2 Consultant has agreed to provide services in the Field, pursuant to the
terms and conditions that follow.

                             II. CONSULTING SERVICES

2.1 Consultant agrees to perform consulting services, as set forth in this
Section II, beginning as of the Effective Date and until November 15, 2001.

2.2 Consultant agrees to be available on a basis, to be mutually agreed upon, to
advise Genetronics management, scientists and/or other Genetronics consultants
in the Field, and to attend meetings on mutually agreeable dates and at mutually
agreeable times and locations as requested by Genetronics ("Services"). Services
shall include, but not be limited to, telephone time; on-site advising at
Genetronics, or elsewhere; review of written documents; and/or preparation of
written documents.

                                       1
<PAGE>   2

                                III. COMPENSATION

3.1 The consideration for Services is the Separation and Release Agreement
entered into between the parties dated July 17, 2001.

                 IV. NO CONFLICT OF INTEREST AND NO COMPETITION

4.1 Consultant acknowledges that no prior or existing relationships exist which
would prevent Consultant from entering into and fulfilling all obligations under
this Agreement.

4.2 Consultant shall not disclose to Genetronics any information, suggestion,
product, product development, or process with respect to which Consultant is
under any actual or implied duty to any third party to keep secret or to advise,
suggest, or develop such information, and nothing in this Agreement shall impose
an obligation on Consultant to act contrary to any such actual or implied duty
to others. Genetronics shall be free to use all information that is disclosed by
Consultant to Genetronics without any further obligation to Consultant.

4.3 Genetronics wishes to avoid any possibility of conflict arising in the
future. Therefore, if any specific issue or project brought to the attention of
Consultant by Genetronics poses a potential conflict of interest, Consultant
will immediately advise Genetronics and Genetronics shall not request Services
on that specific issue or project.

4.4 No Competition

        a. Consultant acknowledges that development of, and maintaining
proprietary rights in, instruments, hardware, applicators and other equipment
related to electroporation-mediated delivery of compositions, such as drugs and
genes ("Genetronics Equipment") is a primary focus of Genetronics' current
business and future goals. Consultant also acknowledges that research and
development of electrically-assisted delivery of compositions to experimental
animals and human subjects, for a variety of biological and pathological fields
("Genetronics Research"), is another current and future objective of
Genetronics.

        b. It would be detrimental to Genetronics' business if Consultant were
to assist Genetronics' competitors in the areas of Genetronics Research or with
instrumentation competitive with Genetronics Equipment.

        c. Consultant shall not use, promote, develop, or assist in the
development of,

                                       2
<PAGE>   3

instrumentation that is competitive with Genetronics Equipment. Further,
Consultant shall not contract or collaborate, or otherwise assist, a third party
in the area of Genetronics Research. Consultant acknowledges and agrees with
these restrictions.

4.5 Consultant warrants and represents that it is not aware that any
relationship presently exists which is in conflict with the provisions of this
Section IV, and that it has disclosed to Genetronics any other consulting or
business relationships that may possibly be related to this Agreement.

                           V. CONFIDENTIAL INFORMATION

5.1 Genetronics shall disclose confidential information to Consultant directly
or indirectly, with or without notice of its confidential nature. Accordingly,
Consultant agrees to hold all information disclosed to Consultant by Genetronics
in confidence and neither disclose the same to others nor use the same for any
purpose other than as provided herein without the written permission of
Genetronics. Upon request, Consultant will return to Genetronics all written
information supplied to Consultant by Genetronics, or generated by Consultant on
behalf of Genetronics, including all copies thereof.

5.2 Consultant agrees that all technical information, including any reports,
relating to Genetronics developed by Consultant in connection with Services
under this Agreement, shall be the property of Genetronics and subject to the
confidentiality and nonuse provisions set forth herein.

5.3 The duty of confidentiality and nonuse shall not apply to any information
disclosed to Consultant by Genetronics which, through no act or failure to act
on the part of Consultant:

        a. is or becomes public information,

        b. Consultant has in his possession at the time of disclosure by
Genetronics, other than by previous disclosure by Genetronics,

        c. is furnished to Consultant by a third party without restriction on
disclosure, provided the third party is not related to this Agreement or to
Services rendered,

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<PAGE>   4

        d. is developed by or for Consultant outside the scope of this
Agreement, or

        e. Consultant has an obligation to disclose under law, including but not
limited to those promulgated by the FDA, SEC and/or USPTO, provided Genetronics
is given a reasonable opportunity to review the planned disclosure and discuss
the need for such.

                                 VI. INVENTIONS

6.1 Any inventions, discoveries and improvements, patentable or unpatentable,
that arise out of Services provided by Consultant under this Agreement and for
which Consultant is an inventor or coinventor, as determined under U.S. patent
law, ("Inventions") shall belong to Genetronics.

6.2 Consultant shall promptly and fully disclose all Inventions to Genetronics
and cooperate with Genetronics or with its attorneys as may be reasonably
required in order to obtain patent and copyright protection therefor, including
the signing of any proper assignments, affidavits, applications and the like.
Furthermore, Consultant agrees to assign or otherwise transfer any and all
property rights, including all patent rights and all copyrights in materials
related to Services, domestic and foreign, resulting therefrom to Genetronics.

6.3 Consultant represents and warrants that it has the right to agree to the
terms of Sections 6.1 and 6.2 and is not bound by an obligation of assignment to
a third party with respect to Inventions, as defined herein.

                              VII. OTHER PROVISIONS

7.1 In performing Services for Genetronics pursuant to this Agreement,
Consultant shall be acting in the capacity of an independent contractor to
Genetronics and not as an employee of Genetronics or any of its subsidiaries or
affiliated companies. Accordingly, although Genetronics shall specify the
general nature of the work to be performed and the goals to be met, the details
of performing such work and meeting such goals shall be determined by
Consultant. Consultant shall not be entitled to any benefits Genetronics offers
its employees.

7.2 The term of this Agreement shall be one year from the Effective Date, unless
terminated earlier pursuant to terms and conditions set forth in this Agreement
or extended longer as may be mutually agreed by the parties in writing.
Provisions of compensation, confidentiality, nonuse, and invention shall survive
termination of the Agreement.

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<PAGE>   5

7.3 Either party may terminate this Agreement for any reason upon at least 30
days prior written notice delivered to the other.

7.4 This Agreement cannot be assigned by Consultant.

7.5 Any amendment or modification to this Agreement shall be valid only if in
writing and signed by both parties.

7.6 This Agreement will be governed by the laws of the State of California and,
to the extent applicable, the laws of the United States of America, without
regard to the place this Agreement is to be performed or where this Agreement
was made. Any dispute arising under this Agreement that the parties cannot
resolve by good faith negotiation and discussion shall be decided by binding
arbitration, conducted according to rules and guidelines to which the parties
shall jointly agree after good faith negotiation. In the event the parties
cannot agree on such rules and guidelines within 30 days of beginning such
negotiation, the parties hereby agree that the rules and guidelines of the
American Arbitration Association shall apply to resolve the dispute.

        Agreement to the foregoing is indicated by the signatures below:

GENETRONICS, INC.                           CONSULTANT

By: Grant Denison                           By: /s/ Martin Nash
   -------------------------------             ---------------------------------
                                            Social Security Number:

Date: July 17, 2001                         Date: July 10, 2001
     -----------------------------               -------------------------------

                                       5<PAGE>   1
                                                                   EXHIBIT 10.31

                               SECOND AMENDMENT TO
                   FIRST AMENDED AND RESTATED CREDIT AGREEMENT

     THIS SECOND AMENDMENT TO FIRST AMENDED AND RESTATED CREDIT AGREEMENT (this
"Amendment") is made and dated as of the 21st day of May, 2001, by and among
BOYD GAMING CORPORATION, a Nevada corporation (the "Borrower") and CANADIAN
IMPERIAL BANK OF COMMERCE ("CIBC"), as administrative agent and collateral agent
(herein, in such capacity, called the "Agent"), for the commercial lending
institutions party to the hereinafter-described Credit Agreement (collectively,
the "Lenders").

                                    RECITALS

     A. The Borrower and the Lenders entered into that certain First Amended and
Restated Credit Agreement dated as of June 30, 1999, as amended by that certain
First Amendment to First Amended and Restated Credit Agreement dated as of July
26, 2000 (as so amended, the "Credit Agreement"), pursuant to which the Lenders
agreed to extend credit to the Borrower on the terms and subject to the
conditions set forth therein.

     B. The Borrower and the Lenders desire to further amend certain terms and
conditions of the Credit Agreement pursuant to this Amendment.

     NOW, THEREFORE, in consideration of the above Recitals and for other good
and valuable consideration, the receipt and adequacy of which are hereby
acknowledged, the parties hereto hereby agree to amend the Credit Agreement as
follows:

                                    AGREEMENT

     1. The Credit Agreement is hereby amended as follows:

     a. The following definitions shall be added to Section 1.1 of the Credit
Agreement in appropriate alphabetical sequence:

     "Delta Downs" means the horse racing and pari-mutuel business including the
food and beverage, simulcast and related operations in Calcasieu Parish,
Louisiana known as Delta Downs Racetrack and Casino; and the off track betting
business including the food and beverage and related operations in Madison
Parish, Louisiana known as Winner's Circle.

     "Delta Downs Acquisition Agreement" means that certain Asset Purchase
Agreement dated as of April 26, 2001 among Delta Downs Racing Association, Inc.,
Delta Downs, Incorporated, Winners Circle #1 of Madison, LLC and Delta Downs
Acquisition Subsidiary, as the same may be amended on terms satisfactory to the
Agent.

     "Delta Downs Acquisition Subsidiary" means Boyd Racing, L.L.C., a Louisiana
limited liability company.

     "Delta Downs Investment" means the acquisition by Delta Downs Acquisition
Subsidiary of substantially all the assets of Delta Downs pursuant to the Delta
Downs Acquisition Agreement and the subsequent Investment by the Borrower in
Delta Downs Acquisition Subsidiary of up to $35,000,000 for Capital Expenditures
to refurbish the existing facilities of Delta Downs and to build-out and furnish
the casino portion of Delta Downs.

<PAGE>   2

     "Delta Downs Purchase Price" means the amount, up to a maximum of
$125,000,000, payable to the sellers of Delta Downs pursuant to the Delta Downs
Acquisition Agreement.

     b. The definition of the term "EBITDA" in Section 1.1 of the Credit
Agreement is hereby amended by adding the following immediately prior to the end
thereof:

     For the three Fiscal Quarters, commencing with the Fiscal Quarter ending
     December 31, 2001, EBITDA shall be calculated after giving pro forma effect
     to the acquisition of Delta Downs. For the Fiscal Quarter ending December
     31, 2001, the Delta Downs Acquisition Subsidiary's earnings before
     depreciation, amortization, interest expense, pre-opening expenses,
     extraordinary items and taxes, all as determined in accordance with GAAP
     ("Delta Downs EBITDA"), for such Fiscal Quarter shall be multiplied by four
     and the resulting product added to EBITDA. For the Fiscal Quarter ending
     March 31, 2002, the Delta Downs EBITDA for the two Fiscal Quarters ending
     on such date shall be multiplied by two and the resulting product added to
     EBITDA. For the Fiscal Quarter ending June 30, 2002, the Delta Downs EBITDA
     for the three Fiscal Quarters ending on such date shall be multiplied by
     four, divided by three and the resulting figure added to EBITDA.

     c. The definition of the term "Restricted Indebtedness" in Section 1.1 of
the Credit Agreement is hereby amended to read in its entirety as follows:

     "Restricted Indebtedness" means all Indebtedness incurred pursuant to a
Permitted Senior Note Issuance in excess of (a) $125,000,000 minus (b) the
amount of any increase in the Commitment hereunder accepted by the Borrower
pursuant to Section 2.9 hereof from and after May 1, 2001, and all Indebtedness
incurred pursuant to a Permitted Subordinated Debt Issuance in excess of
$250,000,000, except in either case to the extent otherwise permitted pursuant
to Section 7.2.2(vi).

     d. Section 2.9(a) of the Credit Agreement is hereby amended to read in its
entirety as follows:

          SECTION 2.9. Increase in Revolving Loan Commitment Amount and/or Term
     Loan Commitment Amount.

          (a) Provided that no Default or Event of Default then exists, the
     Borrower may on any Business Day prior to the Revolving Loan Commitment
     Termination Date, request in writing that the then effective Term Loan
     Commitment Amount and/or Revolving Loan Commitment Amount be increased in
     accordance with the provisions of this Section. On October 24, 2000, the
     Borrower increased the then effective Term Loan Commitment Amount by
     $100,000,000 pursuant to this Section 2.9. After May 1, 2001, the Borrower
     may make only one request under this Section and in no event may the amount
     of

                                       2

<PAGE>   3

     such increase exceed $125,000,000; provided, however, that the amount of
     such permitted increase shall be reduced on a dollar for dollar basis (but
     in no event to an amount less than $50,000,000) for any Permitted
     Subordinated Debt Issuance or Permitted Senior Note Issuance completed
     after May 1, 2001 and prior to the date of such increase. Any requested
     increase shall be used by the Borrower to fund, or reimburse the Borrower
     for Borrowings used to fund, the Delta Downs Investment. Any request under
     this Section to increase the Commitment Amount(s) shall be submitted by the
     Borrower to the Agent, specify the proposed effective date (which date
     shall be not less than 5 days after the date of such request), the amount
     of such increase and the Commitment Amount(s) proposed to be increased
     (which shall be in integral multiples of $1,000,000) and the Borrower's
     uses for such increase. The Agent may, in the exercise of its sole
     discretion, approve or disapprove of the Borrower's request. If the Agent
     shall approve, no Lender shall have any obligation, express or implied, to
     offer to increase its Commitment. Only the consent of the Agent and those
     Lenders that have increased their Commitments (the "Increasing Lenders")
     shall be required for an increase in the Commitment Amounts pursuant to
     this Section.

     e. Section 7.1.11 of the Credit Agreement is hereby amended by replacing
the word "and" in the fifth line thereof with a comma, by renumbering clause
(iv) as clause (v), and by inserting the following clause immediately prior to
new clause (v): "(iv) to fund the Delta Downs Investment.".

     f. Section 7.2.1 of the Credit Agreement is hereby amended by inserting ",
Delta Downs racetrack" after the word "riverboats" in the fifth line thereof.

     g. Section 7.2.2 of the Credit Agreement is hereby amended by deleting the
word "and" at the end of clause (vi) thereof, inserting the word "and" at the
end of clause (vii) thereof and adding the following clause (viii) immediately
thereafter:

          "(viii) upon the acquisition by Delta Downs Acquisition Subsidiary of
     Delta Downs and until the specified maturity date for such Indebtedness,
     the deferred portion of the Delta Downs Purchase Price having terms and
     conditions satisfactory to the Agent."

     h. Section 7.2.3 of the Credit Agreement is hereby amended by deleting the
word "and" at the end of clause (h) thereof, inserting the word "and" at the end
of clause (i) thereof and adding the following clause (j) immediately
thereafter:

          "(j) upon the acquisition by Delta Downs Acquisition Subsidiary of
     Delta Downs and until the maturity date for the note issued to the sellers
     of Delta Downs, a second-priority mortgage in favor of the sellers of Delta
     Downs securing the Indebtedness permitted under Section 7.2.2(viii), which
     shall be junior in priority to a mortgage in favor of the Agent on behalf
     of the Lenders securing the greater of (x) $60,000,000 or (y) all amounts
     theretofore or contemporaneously paid to the sellers of Delta Downs or
     deposited in the creditors' escrow fund account contemplated by the Delta
     Downs Acquisition Agreement, and which mortgage shall be otherwise in form
     and substance satisfactory to the Agent, on the real and personal property
     interests that were acquired by Delta Downs Acquisition Subsidiary pursuant
     to the Delta Downs Acquisition Agreement;"

                                       3
<PAGE>   4

     i. Clauses (b) and (c) of Section 7.2.4 of the Credit Agreement are hereby
amended to read in their entirety as follows:

          (b) the Total Leverage Ratio at the end of any Fiscal Quarter, for the
     period of four consecutive Fiscal Quarters ending on such date, to be
     greater than the ratio set forth below opposite such period:

                Period                                         Ratio
                ------                                      -----------
     June 30, 1999 - September 30, 2000                     4.50 to 1.0
     December 31, 2000 - June 30, 2001                      4.75 to 1.0
     September 30, 2001                                     4.90 to 1.0
     December 31, 2001 and thereafter                       4.75 to 1.0

     provided, that until the Borrower shall have made the Delta Downs
     Investment, then the foregoing chart shall be replaced with the
     following chart:

                 Period                                        Ratio
                 ------                                     -----------
     June 30, 1999 - September 30, 2000                     4.50 to 1.0
     December 31, 2000 and thereafter                       4.75 to 1.0

          (c) the Senior Secured Leverage Ratio at the end of any Fiscal Quarter
     for any period of four consecutive Fiscal Quarters ending on or after June
     30, 1999 to be greater than 2.75 to 1.00; provided, that if from and after
     the Effective Date the Borrower shall have increased the Commitment Amounts
     pursuant to Section 2.9 hereof by at least $125,000,000, then commencing
     with the period of four consecutive Fiscal Quarters ending on June 30, 2001
     and continuing for each period of four consecutive Fiscal Quarters
     thereafter, the Senior Leverage Ratio at the end of any Fiscal Quarter
     shall not be greater than 3.00 to 1.00.

     j. Section 7.2.5 of the Credit Agreement is hereby amended by deleting
"and" at the end of clause (vii) thereof, inserting the word "and" at the end of
clause (viii) thereof and adding the following clause (ix) immediately
thereafter:

          "(ix) payment of the Delta Downs Purchase Price and up to $35,000,000
     of additional Investments in Delta Downs Acquisition Subsidiary in the form
     of Capital Expenditures permitted under Section 7.2.7(d) during the term of
     this Agreement."

     k. Section 7.2.7 of the Credit Agreement is hereby amended by deleting the
word "and" at the end of clause (b) thereof, replacing the period at the end of
clause (c) thereof with "; and" and by adding the following clause (d)
immediately thereafter:

          "(d) payment of the Delta Downs Purchase Price and up to $35,000,000
     of additional Capital Expenditures (including Expansion Capital
     Expenditures) in connection with the Delta Downs Investment."

                                       4
<PAGE>   5

     l. Section 7.2.8 of the Credit Agreement is hereby amended by adding the
following clause immediately prior to the end thereof:

     "and (iii) the Delta Downs Acquisition Subsidiary may acquire substantially
     all of the assets of Delta Downs pursuant to the Delta Downs Acquisition
     Agreement."

     2. Effective Date. This Amendment shall be effective on the date on which:

     a. This Amendment shall have been executed by the Borrower, the Majority
Lenders in the case of the amendments described in subsections a and b of
Section 1 hereof and the Majority Revolving Lenders in the case of all other
amendments;

     b. The Agent shall have received executed acknowledgment and
reaffirmations, substantially in the form set forth in Exhibit A hereto, duly
executed by each of the Guarantors;

     c. The Agent shall have received a fee on behalf of each Lender (including
the Agent) who has returned an executed consent to this Amendment in the form of
Exhibit B to the Agent or its counsel, Mayer, Brown & Platt, by 12:00 noon, Los
Angeles time, on May 21, 2001, which fee shall be in an amount equal to 0.125%
of such Lender's aggregate Commitment under the Credit Agreement.

     3. Representations and Warranties. The Borrower hereby represents and
warrants to the Agent and the Lenders as follows:

     a. The Borrower has the power and authority and the legal right to execute,
deliver and perform this Amendment and has taken all necessary action to
authorize the execution, delivery and performance of this Amendment. This
Amendment has been duly executed and delivered by the Borrower. The Credit
Agreement (as amended by this Amendment) and the other Loan Documents to which
the Borrower is party constitute legal, valid, and binding obligations of the
Borrower, enforceable against the Borrower in accordance with their terms,
subject to applicable bankruptcy, insolvency, reorganization, moratorium and
other similar laws now or hereafter in effect relating to creditors' rights
generally, and general principles of equity.

     b. At and as of the date of execution hereof and at and as of the effective
date of this Amendment and after giving effect to this Amendment: (1) the
representations and warranties of the Borrower contained in the Credit Agreement
are true and correct in all respects, and (2) no Default or Event of Default has
occurred and is continuing under the Credit Agreement.

     4. Reaffirmation of Credit Agreement. This Amendment shall be deemed to be
an amendment to the Credit Agreement, and the Credit Agreement, as amended
hereby, is hereby ratified, approved and confirmed in each and every respect.
All references to the Credit Agreement in any other document, instrument,
agreement or writing shall hereafter be deemed to refer to the Credit Agreement
as amended hereby.

     5. Reaffirmation of Loan Documents. The Borrower hereby further affirms and
agrees that (a) the execution and delivery by the Borrower of and the
performance of its obligations under the Credit Agreement, as amended by this
Amendment, shall not in any way amend, impair, invalidate or otherwise affect
any of the obligations of the Borrower or the rights of the Agent or the Lenders
under any of the Loan Documents or any other document or instrument made or
given by the Borrower in connection therewith, and (b) the term "Obligations" as
used in the Loan Documents includes, without limitation, the Obligations of the
Borrower under the Credit Agreement as amended by this Amendment.

                                       5
<PAGE>   6

     6. Miscellaneous Provisions.

     a. Survival. The provisions of this Amendment shall survive to the extent
provided in Section 10.5 of the Credit Agreement.

     b. Governing Law. THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE INTERNAL LAWS OF NEVADA.

     c. Counterparts. This Amendment may be executed in any number of
counterparts, all of which together shall constituted one agreement.

     d. No Other Amendment. Except as expressly amended herein, the Credit
Agreement, the other Loan Documents and all documents, instruments and
agreements relating thereto or executed in connection therewith shall remain in
full force and effect as currently written.

                                       6
<PAGE>   7

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed by their respective officers thereunto duly authorized as of the day
and year first above written.

                                                BOYD GAMING CORPORATION

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                CANADIAN IMPERIAL BANK OF
                                                COMMERCE, as Agent

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                       7

<PAGE>   8

                                          EXHIBIT A to Second Amendment to First
                                          Amended and Restated Credit Agreement

                                  May 21, 2001

The parties listed on the
signature pages hereof
c/o Boyd Gaming Corporation
2950 South Industrial Road
Las Vegas, Nevada 89109

Attention: Chief Financial Officer

     Re: Boyd Gaming Corporation

Gentlemen:

     Please refer to (1) the First Amended and Restated Credit Agreement, dated
as of June 30, 1999, as amended by that certain First Amendment to First Amended
and Restated Credit Agreement dated as of July 26, 2000 (as so amended, the
"Credit Agreement"), by and among Boyd Gaming Corporation, as the Borrower, the
commercial lending institutions party thereto (collectively, the "Lenders"),
Wells Fargo Bank, N.A., as Swingline Lender and Syndication Agent, Canadian
Imperial Bank of Commerce ("CIBC"), as letter of credit issuer, Bank of America,
N.A., as Documentation Agent, and CIBC, as Administrative Agent and collateral
agent for the Lenders (herein, in such capacity, called the "Agent") (the
Lenders and the Agent herein are collectively called the "Beneficiaries") and
(2) the Amended and Restated General Continuing Guaranty, dated as of June 30,
1999 (the "Guaranty") to which each of you is now a party in favor of the Agent
for the Beneficiaries. Pursuant to an amendment dated of even date herewith,
certain terms of the Credit Agreement were amended. We hereby request that you
(i) acknowledge and reaffirm all of your obligations and undertakings under the
Guaranty and (ii) acknowledge and agree that the Guaranty is and shall remain in
full force and effect in accordance with the terms thereof.

                                      A-1

<PAGE>   9

         Please indicate your agreement to the foregoing by signing in the space
provided below, and returning the executed copy to the undersigned.

                                                CANADIAN IMPERIAL BANK OF
                                                COMMERCE, as Agent

                                                By:
                                                    ----------------------------
                                                Title: Managing Director
                                                       CIBC World Markets Corp.,
                                                       AS AGENT

Acknowledged and Agreed:                        MARE-BEAR, INC., a Nevada
                                                corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                SAM-WILL, INC., a Nevada
                                                corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                BOYD TUNICA, INC., a Mississippi
                                                corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                CALIFORNIA HOTEL AND CASINO,
                                                a Nevada corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                      A-2

<PAGE>   10

                                                CALIFORNIA HOTEL FINANCE
                                                CORPORATION,
                                                a Nevada corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                BOYD ATLANTIC CITY, INC.,
                                                a New Jersey corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                ELDORADO, INC., a Nevada
                                                corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                PAR-A-DICE GAMING CORPORATION,
                                                an Illinois corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                BOYD MISSISSIPPI, INC., a Nevada
                                                corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                BOYD KENNER, INC., a Louisiana
                                                corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                      A-3

<PAGE>   11

                                                BOYD LOUISIANA L.L.C.,
                                                a Louisiana limited liability
                                                company

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                M.S.W., INC., a Nevada
                                                corporation

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                TREASURE CHEST CASINO, L.L.C.,
                                                a Louisiana limited liability
                                                company

                                                By: Boyd Kenner, Inc.,
                                                    Managing Agent

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                BLUE CHIP CASINO LLC, an Indiana
                                                limited liability company

                                                By: Boyd Indiana, Inc.,
                                                    an Indiana corporation,
                                                    its sole member

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                                BOYD INDIANA, INC.

                                                By:
                                                    ----------------------------
                                                Title:
                                                      --------------------------

                                      A-4

<PAGE>   12

                                          EXHIBIT B to Second Amendment to First
                                          Amended and Restated Credit Agreement

                                CONSENT OF LENDER

     Reference is hereby made to the First Amended and Restated Credit Agreement
dated as of June 30, 1999 among Boyd Gaming Corporation (the "Borrower"), the
Lenders party thereto and Canadian Imperial Bank of Commerce, as Administrative
Agent.

     The undersigned Lender hereby consents to the execution and delivery of the
Second Amendment to the First Amended and Restated Credit Agreement by the
Administrative Agent on its behalf, substantially in the form of the most recent
draft thereof presented to the undersigned Lender.

Dated:  May __, 2001

                                               ---------------------------------
                                               [Name of Institution]

                                               By:
                                                   -----------------------------
                                               Name:
                                                     ---------------------------
                                               Title:
                                                     ---------------------------

                                      B-1

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00028-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00028-of-00352.parquet"}]]