The player commands a ship at the lower part of the screen and can move to the left and right to aim at enemies and upwards to trigger a thrust at the aliens spawning ground. The background moves slowly downwards which creates an illusion of constant upward movement. Evil invading aliens ships appear from the top of the screen and moves downwards, sometimes shooting red deadly laser beams. The player’s task is to laser-blast the aliens to infinity and beyond without being hit by the aliens ships or lasers.
1. Tap the screen to shoot
2. Pan up and down mobile phone to move the spacecraft