An addictive, annoying casual shooter! You are the Ninja. You throw Shurikens. Aliens are invading. Take em' out using your Shurikens! Watch out for the bombs. If an alien reaches Earth (or a bomb), it's game over. How long can you last as the invasion gains momentum? Getting a high score is not going to be easy on this one!
To play, tap the screen. Then, finger on the ninja star and flick/throw it! Simple swipe aim and fire! If you prefer to be more technical, you can treat the star like a snooker ball and simply "tap" to fire in a direction. Whatever works!
...oh, you get nukes too, and time freeze bombs. Use them sparingly though, you only have two of each!