Yes, there are several cheat codes available for Plants and Zombies. You should consider that for some of them to work, your Tree of Wisdom has to reach a certain high. In order to activate the codes just type them while playing the game. Below you have the list with the cheats available at this moment:
- trickedout - Alternate Lawn Mower appearance.
- pinata - Candy rains when zombies die.
- daisies - Daisies appear when zombies die.
- slowboke - Zombies walk slowly.
- future - Zombies wear sunglasses.
- mustache - Zombies have mustaches.
- dance - Zombies dance.
- sukhbir - Toggles zombie call for brains sound.