wowGame is funny flash free online game.

＜What You Need＞
Mouse

＜How to Play＞
Destroy the toxic substances!

1. Buy a gun and place it where you like.
2. If the enemies reach the top right, you'll lose health. When you run out of health, it's game over.
3. As you defeat enemies, your money will increase. Use it to buy new weapons and upgrade weapons you already have.
☆ Defense games ☆