Classic game - Space Invaders - Free and funny retro games from the eighties

Space Invaders is a really retro game. This one was at the beginning of the shootergames. Aliens try to take over earth, it is up to you to save earth from these aliens by shooting all their spaceships. You can hide behind the bunkers but the bunkers will not hold against their futuristic weapons and will lose their protective force. Watch for the red mothership. Shoot it and earn extra points. 
Move with the arrow keys and shoot with the spacebar..

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