Enter these codes with your keyboard during gameplay for the desired effect.

Code	Costume
daisies	Zombies leave small daisies behind when killed.
future	Futuristic sunglasses for zombies.
mustache	Zombies with womb brooms.
pinata	a shower of candy when a zombie dies.
sukhbir	toggles the zombie's call for brains-sound.
trickedout	Alternate Lawn Mower appearance.