Galaxy Battle Free

Galaxy Battle is a Free Game to Android.
Earth is under attack from a vast fleet of martian invaders.
Earth needs your help to defeat them. But it will not be easy.
You have three modes:
♥ Play against time:
• You have an limited time (30 seconds)
♥ Play with limited shots
• You have limited shots (10 shots)
♥ Play by levels
• You have an limited time (30 seconds) and limited shots (10)
• Try to win the largest number of levels.

Use android accelerometer to adjust the scope inside the ship.
Click in the screen to defeat them.

Enjoy.