Chocolate

Chocolate can be randomly obtained from zombies in Adventure Mode, Mini-games, Puzzle Mode, and Survival Mode, making the same sound effect as a Diamond. Its sugary goodness causes Stinky the Snail to move faster and stay awake for an hour. Chocolate can also be used on plants, causing them to drop coins more quickly.

The player can have up to 10 pieces of Chocolate at once; when the limit is reached zombies stop dropping them. It is possible for a player to have more than 10 chocolates at once; if they already have 9 chocolates, and an Instant kill is used, the killed zombie may drop 2 or more chocolates.

Note that Chocolate will not drop until you actually purchase Stinky the Snail.

If you have the maximum number of Chocolate (10 pieces), the drop rate of Zen Garden plants increases slightly.

Trivia

 * When you feed Stinky The Snail with chocolate, a siren will be heard. It is also heard when you feed a Hypno-shroom to a zombie.
 * Chocolate is surprisingly not available in the Zen Garden part of Crazy Dave's Twiddydinkies, even if it is a necessity, especially when you have a lot of Zen Garden plants.
 * When a Chocolate is dropped in a level, it makes the same sound as a Diamond.

