Document:

<PAGE>

                                                                    Exhibit 10.7

                         Schedule of Omitted Documents

     Pursuant to Instruction No. 2 to Item 601 of Regulation S-K, MGM Grand,
Inc. has omitted from the Exhibits filed with its Current Report on Form 8-K the
First Security Bank Guarantee, which differs from the Firstar Bank of Minnesota
Guarantee filed as Exhibit 10.6 to this Current Report solely to the extent that
each guaranty supports a different agreement.  The signatory parties and
substantive text of both guarantees are exactly the same.  Only the parties in
whose favor the guarantees were executed and the recital stating the interest
rate and maturity date of the obligations being guaranteed are different, the
Firstar Bank of Minnesota Guarantee being in favor of Firstar Bank of Minnesota,
N.A. with respect to $250,000,000 of 7.25% Senior Notes due 2006 and the First
Security Bank Guarantee being in favor of First Security Bank, National
Association with respect to $200,000,000 of 6.75% Notes due August 1, 2007 and
$100,000,000 of 7.25% debentures due August 1, 2017.<PAGE>

                                                                    Exhibit 10.8
                         Schedule of Omitted Documents

     Pursuant to Instruction No. 2 to Item 601 of Regulation S-K, MGM Grand,
Inc., has omitted from the Exhibits filed with its Current Report on Form 8-K
the Chase Manhattan Bank Guarantee II, which differs from the Firstar Bank of
Minnesota Guarantee filed as Exhibit 10.6 to this Current Report solely to the
extent that each guaranty supports a different agreement.  The signatory parties
and substantive text of both guarantees are exactly the same.  Only the parties
in whose favor the guarantees were executed and the recital stating the interest
rate and maturity date of the obligations being guaranteed are different, the
Firstar Bank of Minnesota Guarantee being in favor of Firstar Bank of Minnesota,
N.A. with respect to $250,000,000 of 7.25% Senior Notes due 2006 and the Chase
Manhattan Bank Guarantee II being in favor of The Chase Manhattan Bank with
respect to $200,000,000 of 6.625% Notes due February 1, 2005 and $200,000,000 of
Notes due August 1, 2017.<PAGE>

                                                                    EXHIBIT 10.9

                             INSTRUMENT OF JOINDER
                             ---------------------

          THIS INSTRUMENT OF JOINDER ("Joinder") is executed as of May 31, 2000,
by Mirage Resorts, Incorporated and each of its undersigned subsidiaries (each,
"Joining Party") with reference to the following facts:

                                   RECITALS
                                   --------

     A.  MGM Grand, Inc., a Nevada corporation ("MGM Grand"), has acquired
     Mirage Resorts, Incorporated, a Nevada corporation ("Mirage"), through its
     subsidiary, MGMGMR Acquisition, Inc. ("MGMGMR")  MGMGMR has merged with
     Mirage, with Mirage the survivor.

     B.  Each of the former subsidiaries of Mirage which are a party hereto has
     also merged with a separate acquisition company formed by MGM Grand
     (collectively with MGMGMR, each being referred to herein as an "Acquisition
     Company"), with the subsidiary of Mirage the survivor.

     C.  Immediately prior to the acquisition and merger transactions described
     above, each of the Acquisition Companies executed guarantees of certain
     senior indebtedness of MGM Grand (the "Guaranteed Indebtedness" described
     below).

     D.  By this Joinder, each Joining Party hereby confirms that, by operation
     of law and by these presents, it has assumed the obligations of the
     Acquisition Companies under their respective guarantees of the Guaranteed
     Indebtedness.

          NOW THEREFORE, each Joining Party agrees as follows

          1.   The Guarantees.  This Joinder is executed with reference to the
               --------------
following guarantees each dated as of May 31, 2000 (collectively, the
"Guarantees"):

     (a) Bank Multi-Year Guaranty.  The Subsidiary Guaranty made by MGM Grand,
         ------------------------
     MGMGMR, and certain other subsidiaries of MGM Grand, Inc. in favor of Bank
     of America, N.A., as Administrative Agent for the benefit of the Banks that
     are parties to that certain Second Amended and Restated Loan Agreement (the
     "Second Amended and Restated Loan Agreement") dated as of April 10, 2000,
     by and among MGM Grand, Inc., a Delaware corporation, MGM Grand Atlantic
     City, Inc., a New Jersey corporation, as a Co-Borrower, MGM Grand Detroit,
     LLC, a Delaware limited liability company, as a Co-Borrower, the Banks
     which are parties thereto and Bank of America, N.A., as the Administrative
     Agent for the Banks.

     (b) Bank Short Term Guaranty. The Subsidiary Guaranty made by MGM Grand,
         ------------------------
     MGMGMR, and certain other subsidiaries of MGM Grand, Inc. in favor of Bank
     of America, N.A., as Administrative Agent for the benefit of the Banks that
     are parties to that certain 364-Day Loan Agreement (the "364-Day Loan
     Agreement") dated as of April 10, 2000, by and among MGM Grand, Inc., MGM
     Grand Atlantic City, Inc., as a Co-Borrower, MGM Grand

                                      -1-
<PAGE>

     Detroit, LLC, as a Co-Borrower, the Banks which are parties thereto and
     Bank of America, N.A., as the Administrative Agent for such Banks.

     (c) Bank Term Loan Guaranty.  The Subsidiary Guaranty made by MGM Grand,
         -----------------------
     MGMGMR, and certain other subsidiaries of MGM Grand, Inc. in favor of Bank
     of America, N.A., as Administrative Agent for the benefit of the Banks that
     are parties to that certain Term Loan Agreement (the "Term Loan Agreement")
     dated as of April 7, 2000, by and among MGM Grand, Inc., MGM Grand Atlantic
     City, Inc., as a Co-Borrower, MGM Grand Detroit, LLC, as a Co-Borrower, the
     Banks which are parties thereto and Bank of America, N.A., as the
     Administrative Agent for such Banks.

     (d) Guaranty of 6.95% Notes Due 2005.  The Guaranty made by MGMGMR, and
         --------------------------------
     certain other subsidiaries of MGM Grand, Inc. in favor of The Chase
     Manhattan Bank, as successor trustee to PNC Bank, National Association, for
     the holders of MGM Grand's 6.95% Senior Collateralized Notes due 2005
     issued pursuant to the Indenture dated as of February 2, 1998 between MGM
     Grand and PNC Bank, National Association, as Trustee (the "6.95%
     Indenture").

     (d) Guaranty of 6-7/8% Notes due 2008.  The Guaranty made by  MGMGMR, and
         ---------------------------------
     certain other subsidiaries of MGM Grand, Inc. in favor of U.S. Trust
     Company, National Association, for the holders of MGM Grand's 6-7/8% Senior
     Collateralized Notes due 2008 issued pursuant to the Indenture dated as of
     February 6, 1998 between MGM Grand and U.S. Trust Company, National
     Association, as Trustee (the "6-7/8% Indenture").

          The Second Amended and Restated Loan Agreement, the 364-Day Loan
Agreement, the Term Loan Agreement, the 6.95% Indenture and the 6-7/8% Indenture
are collectively referred to herein as the "Guaranteed Indebtedness").

                                      -2-
<PAGE>

                                   AGREEMENT
                                   ---------

          (1) By this Joinder, each Joining Party confirms that it has merged
with one of the Acquisition Companies and that, by operation of law and by this
Joinder, it has become a party to each of the Guarantees and is bound by all of
the terms, conditions, and duties applicable to a Guarantor under each of the
Guarantees.

          (2) The effective date of this Joinder is May 31, 2000

          (3) Notice of acceptance hereof is waived.

          IN WITNESS WHEREOF, each of the undersigned has executed this Joinder
by its duly authorized officer as of the date first written above.

                              AC HOLDING CORP.

                              AC HOLDING CORP. II

                              THE APRIL COOK COMPANY

                              ATLANDIA DESIGN AND FURNISHINGS

                              BEAU RIVAGE DISTRIBUTION CORP.

                              BEAU RIVAGE MARKETING CORP.

                              BEAU RIVAGE RESORTS, INC.

                              BELLAGIO

                              BOARDWALK CASINO, INC.

                              BUNGALOW, INC.

                              COUNTRY STAR LAS VEGAS, LLC

                              DAP CORPORATION

                              EGARIM, INC.

                              By: /s/ Scott Langsner
                                 ---------------------------------
                                 Scott Langsner,
                                 Assistant Secretary to each of the foregoing

                                      -3-
<PAGE>

                              GN MARKETING CORP.

                              GNL, CORP. (dba Golden Nugget-Laughlin)

                              GNLV, CORP. (dba Golden Nugget)

                              GNLV MARKETING CORP. - CANADA

                              GNS FINANCE CORP.

                              GOLDEN NUGGET (ASIA) LTD.

                              GOLDEN NUGGET AVIATION CORP.

                              GOLDEN NUGGET EXPERIENCE CORP.

                              GOLDEN NUGGET FINANCE CORP.

                              GOLDEN NUGGET LAWRENCEBURG, INC.

                              GOLDEN NUGGET MANUFACTURING CORP.

                              GOLDEN NUGGET MARKETING CORP.

                              GOLDEN NUGGET MARKETING CORP. -
                              ILLINOIS

                              LV CONCRETE CORP.

                              MAC, CORP.

                              MCD GAMING CORP.

                              MH, INC.

                              M.I.R. TRAVEL

                              MRGS CORP.

                              THE MIRAGE CASINO-HOTEL

                              By: /s/ Scott Langsner
                                 ---------------------------------
                                 Scott Langsner,
                                 Assistant Secretary to each of the foregoing

                                      -4-
<PAGE>

                              MIRAGE ENTERTAINMENT AND SPORTS, INCORPORATED

                              THE MIRAGE-GOLDEN NUGGET HONG KONG, LTD.

                              THE MIRAGE-GOLDEN NUGGET TAIWAN, LTD.

                              MIRAGE HAWAII MARKETING CORP.

                              MIRAGE INTERNATIONAL

                              MIRAGE LAUNDRY SERVICES CORP.

                              MIRAGE LEASING CORP.

                              MIRAGE RESORTS OF MARYLAND, INC.

                              MIRAGE RESORTS RETAIL

                              MIRAGE RESORTS RISK MANAGEMENT

                              MIRAGE RESORTS VACATIONS, LLC

                              MIRAGE SOUTH CHINA, INC.

                              RESTAURANT VENTURES OF NEVADA, INC.

                              SHCR CORP.

                              SEE SAW SIGN CORP.

                              TREASURE ISLAND CORP. (dba Treasure
                              Island at the Mirage)

                              TREASURE ISLAND PRODUCTIONS, INC.

                              TYOH ADVERTISING, INC.

                              VIDIAD

                              By: /s/ Scott Langsner
                                 ---------------------------------
                                 Scott Langsner,
                                 Assistant Secretary to each of the foregoing

                                      -5-

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