You control the spaceship and try to shoot down the aliens. The level changes when the score reaches a certain level. There is a boss at the end of each level.
Controls:
D-pad: Move player
Hold A: Shoot
B: Use Bomb (destroys all enemies on screen)
Touchscreen Controls:
Touch the screen to move the player towards the stylus.
Hold L or R to shoot.
Touch the bottom left corner to use a bomb.
Powerups:
If you shoot the enemies before they reach the bottom of the screen or collide into you, it will fill up the blue energy bar in the bottom right corner. When the energy bar is filled a powerup will appear. There are three types of powerups that can be changed by shooting the powerup.
Health - fills your health up
Weapon - gives you the spreader weapon (it will last for a limited amount of time). The
purple energy bar at the bottom right corner shows how long the spreader weapon will last.
Bomb - gives you another bomb. Your bombs are displayed at the bottom left corner.