Game shark codes:

0 time outs away                         
91002ed1   

0 time outs home
91002fd1   

Always first down
910134ce   

Away team scores 0
910045d1   

Home team scores 0
910046d1 

Away team scores 255
91ff45d1     

Home team scores 255
91ff46d1   

Start on 4th quarter
910435ce  

Infinite play clock
91193ece   

Infinite time outs away
91032ed1   

Infinite time outs home
91032fd1