Cheat Codes

In-Game

 * "mustbesanta" Almost all zombies will wear Santa hats of different sizes when you unlock this code. A santa jingle is heard when you activate this code.
 * "trickortreat" Zombies will explode with candies when killed. Different from "pinata".
 * "upgradeyourmowers" Lawn mowers will be furnished in gold. Different than "trickedout".
 * "cibola" Your house will turn into gold.
 * "nuklearsilo" Cob Missles leave a trail of smoke once launched.
 * "unimitated" Every imitated plant on your lawn will have color.
 * "goldenbuckethead" turns buckets gold, which can't be stolen by magnet-shroom but can by golden magnet.
 * "starlight" Makes all starfruit and starfruit-related plants and zombies sparkle.
 * "vacuum" Lawn Mowers turn into vacuum cleaners, a vacuum sound is heard when activated.
 * "fireshoes" Zombies leave behind flames from wherever they walk, flame does not hurt anything.
 * "headless" Makes ALL zombies headless, including Dr. Zomboss.
 * "goldeneye" All of the plants' color will turn to gold.
 * "silverqueen" All of the plants' color will turn to silver.
 * "bloodelf" All plants will be bloody
 * "mustlawnmower" Turns all roof cleaners into lawn mowers.
 * "feelslikearoof" Turns all lawn mowers into roof cleaners.
 * "pekingexpress" Turns the shovel into flaming shovel, like Peking Express achievement icon
 * "immabigtankftw" Turns all lawnmowers, roof cleaners, and pool cleaners into tanks.
 * "disappear" Makes dead zombies vanish in a puff of smoke.
 * "longersmoke" All exploding plants will leave smoke for double as long.
 * "crazyseizure" Inverts all colors.
 * "mirror" Flips the screen.

Menu

 * "up up down down left right left right b a" (arrow keys) takes you to the Sandbox Game Mode. (Plant mode and Zombie Mode)
 * "iwantaraise" toggles the zombie hand rising when you go to Adventure Mode.