Pressure Peashooter

Pressure Peashooter is a plant, that acts as a normal Peashooter. But, when a Zombie comes 2 tiles infront of it, it fires 2x faster. When a Zombie comes 1 tile infront of it, it fires 4x faster. When a Zombie comes to eat it, he faints and dies. These things won't work when it's on Pumpkins, just the fire 2x faster only. Not fainting or fire 4x faster.

Strategy
Dont plant these infront or at the back. Use it in the middle. It's a little useless when in Pumpkins.

Almanac Entry
Pressure Peashooter has an unknown Cardiovascular disorder. The speed of peas he shoots depends on his heart beat. Even Science Pea dosent know the disorder.