Invasion Without Authorization app for iPhone and iPad

Invasion Without Authorization is a fun and simple puzzle shooter where you destroy aliens with bouncing cannon balls. It is an easy to learn game you can play at anytime. You tap on the screen to send a cannon ball flying in that direction. Cannon balls ricochet off of walls, and you use this to destroy the aliens. You have a limited number cannon balls for each level. If you run out, you have to restart the level. The levels get progressively harder and you often have only one cannon ball to complete a level. If you ever find yourself on a really difficult level that you just cant complete, you can skip it. Everyone plays Invasion Without Authorization at their own pace and leisure. It is a game that you can play on the bus, in a waiting room, whenever your teacher is looking in the other direction, or anywhere you have a minute of free time.