High Gravity

High Gravity is a hidden mini-game that can only be accessed using Cheat Engine.

Here, the gravity is so high that the peas that fired by any shooting plants would hit the ground. The projectiles that are fired by Lobbed-shot plants will only be able to hit a zombie at a close range.

When a Balloon Zombie appears, it will fly over three squares and then his balloon pops. While it is walking, it appears to be slipping.

Gain Access to Limbo Page
Add three addresses and change all the value to 144.

See the video tutorial.

Zombies

 * Zombie
 * Flag Zombie
 * Conehead Zombie
 * Buckethead Zombie
 * Screen Door Zombie
 * Balloon Zombie

Strategy
thumb|300px|right|Video of the game
 * One good strategy is to use Garlic and Gloom-shrooms in lanes 2 and 4, but it must be placed carefully, or the balloon zombies will chew on, or possibly even eat the Gloom-shrooms.
 * Another strategy would be to use Fume-shrooms in all lanes. Use up to 3 columns of Fume-shrooms per lane with a Tall-nut in each lane for protection.

Trivia

 * Fume and Corn Cob are the only projectiles that don't effected by the gravity.