Bonus levels

Bonus Levels are the Fifth level of an area (1-5,2-5,3-5, etc.). Most are sneak peeks of a minigame or a mode. The level before, you will recieve an item other than a plant. Such as, on level 1-4, you get the Shovel.

List of Items Before Bonus Levels

 * 1-4: Shovel- Allows you to remove a plant.
 * 2-4: Suburban Almanac-Information on plants and zombies.
 * 3-4: Car Keys-Opens Crazy Dave's Twiddydinkies.
 * 4-4: Taco-Crazy Dave's Magic Taco. When you give it to him, he gives you $1000 and shows you new items in his shop.
 * 5-4: Watering Can-Unlocks the Zen Garden.

Bonus Levels

 * 1-5: Wall-Nut Bowling- A slightly easier version of the Mini-Game Wall-Nut Bowling. You also meet Crazy Dave on this level, and he teaches you how to use the shovel.
 * 2-5: Whack a Zombie- A slightly easier version of the Mini-Game Whack a Zombie.
 * 3-5: Big Trouble Little Zombie- The same as the Mini-Game, but with one less huge wave. The Normal version has three huge waves, and the Bonus Level has two.
 * 4-5: Vasebreaker- You play five levels of Vasebreaker, similar to the Vasebreaker in the online version of the game.
 * 5-5: Bungee Zombie- This is the only Bonus Level that has no Mini-Game (or Puzzle Mode) counterpart. In it, Bungee Zombies bring all zombies. You get only Chompers, Flower Pots, Pumpkins, and Cherry Bombs.