Heavy Metal

Heavy Metal is a mini-game, where you have to attract 70 magnetic items to win.

Common

 * Peashooter
 * Magnet-plant
 * Wall-nut

Uncommon

 * Torchwood
 * Repeater
 * Cherry Bomb

Rare

 * Tall-nut
 * Slow Moss

Common

 * Zombie
 * Buckethead Zombie

Uncommon

 * Football Zombie
 * Pogo Zombie

Rare

 * Conehead Zombie
 * Ladder Zombie

Every Wave

 * Flag Zombie