Code        Result
BGMNY       Large coin at toss 
BTTRFNGRS   Incresed fumbles  
HSNFR       Fire ball
MRSHMLLW    Fat Players 
TRBMN       Unlimited Turbo 
TTHPCK      Thin Players 
SHRTGYS     Small Players 
RGBY        Rugby Mode 
        

Thanks to Revolution reader George Frank!