This tank just will not die. Bounce it off your enemies to kill them. Score bonus points with multiple kills before touching the ground.

Use left and right cursor keys to control movement of your tank. A and D keys work as well.
Use the explosions of your enemies weapons to bounce your indestructible tank into the air.
You score big bonus points by bouncing off as many enemies as possible before you hit the ground again.
Use your earnings to buy a well-balanced array of enemy units to maximize the available explosions.