Gloom Balloon Zombie

If he filled it with toxic waste then how does it float?

Basic Info
Health: 35Damage: Regular (Eating), Massive (On destruction of balloon)

When his balloon is popped, toxic waste will come out in a 3x3 area and damage plants and zombies around him.

Strategies
First, start off with some ice plants to slow this zombie down (Snow Pea is recommended). However, try to keep the balloon from popping. Do this by counting how many shots this zombie absorbs and dig the plant up at the last shot. Done? Use Cherry on him.

Extra: If you want to keep the ice plant on the lawn, use Explode-O-Nut. When the balloon pops, toxic waste will go on the Explode-O-Nut and it will explode!