The game consists of 2 sides: the local spaceship and its enemy’s spaceships. The player uses the mouse to move the local spaceship, and he clicks the mouse to fire bullets in order to destroy the enemy’s spaceships. During the first level, if the local spaceship hit an enemy’s spaceship 3 times, the game is over and the player may play again. If, the spaceships continue it path safely and reaches a score of 100, it is then moved automatically to the second level which is harder than the first one. During the second level, the enemy’s spaceships may fire bullets at the local spaceship, so the game will be over if the local spaceship hits the enemy’s spaceship 3 times, or it was exposed to enemy’s bullets 3 times.