We dare you to enroll yourself into the army, to join its elite troops and venture yourself in... outer-space. A major intergalactic war is about to burst, so hop in your super spaceship and get ready to press the arrow keys for controlling it, for steering it left and right. Speaking of that, the more ships you mange to destroy and the better you manage to keep yours intact, the more money you'll gain for upgrading your spaceship with all kinds of cool upgrades that will make you invincible there on the outer-space battlefield.
Arrow Keys move.
X Keys for launching all those bombs put at your disposal,
Z key for firing bullets from the machine gun that your spaceships equipped with.