Defeat waves of aliens with the crab cannon earning as many points as possible. Use left and right arrow keys to control the crab cannon. Use space bar to fire at descending aliens. Try to destroy the aliens advancing towards the bottom of the screen. As more aliens are defeated, the games tempo will speed up. Defeating the aliens brings another wave that is more difficult. The aliens will attempt to destroy the cannon by firing at it while they approach the bottom of the screen. If they reach the bottom, the alien invasion is successful and the game ends. A special mystery shark, will occasionally move across the top of the screen and award bonus points if destroyed. The laser cannon is partially protected by several stationary defense bunkers that are gradually destroyed by the blasts from the aliens or player.
Thanks to codergeeks amazing game I have created a CRAB version. Enjoy! This is a work in process. Hopefully, it will soon have a great deep sea theme. Just remember that the starfish shoots out of the eyes of the crab cannon. Make sure that you aim from the eyes and not the claws. Thanks, yellowminion4