Get Faster Mojo in the Maze Mini-Game:

At the FAB-DOS Prompt, enter "SPEEDY." 
FAB-DOS will reply with "Faster Mojo."
When you boot up the Maze Mini-Game, 
Austin's speed will be increased. Yeah,
baby, yeah!

Invinicibility in the Platform Mini-Game
Boot up FAB-DOS and enter "RAT POISON" 
at the prompt. If you do this successfully,
FAB-DOS will respond by saying "Viva Las 
Vegas, Baby!" Now when you play the 
platform mini-game, Austin will be 
invincible.