Buttered Popcorn

Buttered Popcorn is a Mini-game exclusive to the iPad version of Plants vs. Zombies. It takes place on a Pool level and the only plants available are four Cob Cannons.

Strategy
The objective of this Mini-game is relatively simple: you need to stop the zombies by launching Corn Cobs, but you can also temporarily stop zombies by tapping them, which places Butter on their heads. However, there is one difficulty in this Mini-game; if a Cob Cannon is eaten, it can never be replaced, and there are no Lawn Mowers or Pool Cleaners to protect the area against the zombies that will inevitably get by. The most difficult zombie on this level is the Dolphin Rider Zombie, as it moves at high speeds, and, as such, hard to stop with butter. Whenever the Gargantuar is in the third column, don't shoot a Corn Cob at him immediately, as he will toss his Imp. Stun him with butter to prevent this from ocurring. You can also stun his Imp before it eats a Cob Cannon.

Zombies
Note: The * indicates a zombie that only appears upon restarting.
 * Zombie
 * Flag Zombie
 * Conehead Zombie
 * Buckethead Zombie
 * Newspaper Zombie
 * Screen Door Zombie
 * Dolphin Rider Zombie
 * Ladder Zombie
 * Jack-in-the-Box Zombie
 * Ducky Tube Zombie
 * Pole Vaulting Zombie
 * Football Zombie
 * Gargantuar and Imp
 * Zombie Yeti*

Trivia

 * For some reason, Buttered Popcorn is a Pool level, despite no aquatic plants being used, but this may be so that players can only have four Cob Cannons.
 * Buckethead Zombies, Conehead Zombies, Newspaper Zombies and Screen Door Zombies appear in this level even though they are, for the level's purposes, identical to regular Zombies.
 * Butter won't damage the Zombies in this Mini-game.
 * The achievement Pool's Closed cannot be unlocked after you defeat this mini-game.
 * You can play this Minigame even though you didn't purchase the Cob Cannon yet.