Exhibit 12(1)

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CERTIFICATIONS
 Exhibit 12(1)



|I, Michael McGarvey, certify that:                                                                                                                                                                                                                                                                                                                         
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|1. I have reviewed this annual report on Form 20-F of Eidos plc;                                                                                                                                                                                                                                                                                           
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|2. Based
       on my knowledge, this annual report does not contain any untrue statement
       of a material fact or omit to state a material fact necessary to make
       the statements made, in light of the circumstances under which such statements
       were made, not misleading with respect to the period covered by this annual
    report;
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|3. Based
       on my knowledge, the financial statements, and other financial information
       included in this annual report, fairly present in all material respects
       the financial condition, results of operations and cash flows of Eidos
    plc as of, and for, the periods presented in this annual report;                               
|                                                                                                                                                                                                                                                                                                                                                           
|4.
       Eidos plcs other certifying officers and I are responsible for establishing
       and maintaining
       disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)
    and 15d-15(e)) for Eidos plc and have:                                                                                                             
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|a.                                                                                                                                                                                                                                                                                                                                                         
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|b.                                                                                                                                                                                                                                                                                                                                                         
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|c.                                                                                                                                                                                                                                                                                                                                                         
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|5. Eidos
       plcs other certifying officers and I have disclosed, based on our
       most recent evaluation
       of internal control over financial reporting, to the Eidos plcs
       auditors and the audit committee of Eidos plcs board of directors
    (or persons performing the equivalent function):
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|                                                                                                                                                                                                                                                                                                                       
|a.                                                                                                                                                                                                                                                                                                                     
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|b.                                                                                                                                                                                                                                                                                                                     
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Date: December 20, 2004

|                                                                           | 
|-------------------------------------------------------------------------- | 
|/s/ MICHAEL McGARVEY
    Michael
    McGarvey 
    Chief Executive Officer | 
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