Play the Stubbs vs. Chief Masters Dance Battle and get a "Perfect" rating in all rounds (including the bonus one) to see a bonus sequence with a hovering limousine.
Collect the hidden hippo heads in Insane Mode to hear a developer commentary track.
If you want infinite health and ammo for this game, here is what you do.
1. create a txt file in your main Stubbs the Zombie directory.
2. open up that txt file and typ in the following lines:
3. after you have done that, save.
the cheats should now work for your game, but while your in the game your health and ammo will still go down. but you wont die or run out of ammo.