Bubble Shooter Galaxy Defense

Bubble Shooter Galaxy Defense is a bubble puzzle game. This time instead of balls there are armament left by past aliens armies. Use the giant cannon to shoot and to destroy the alien balls. Shoot on two or more same balls to destroy them. You can play in two modes, time trial mode and survival mode. In the time trial mode you have 2 minutes to earn biggest score while in survival mode you must reach an ever growing score.