Simple and fun
The game may be simple, but the game is also fun and enjoyable. I enjoy the mini-bosses throughout each level, the over-time upgradeable weapon sytem, and the looped background music.
The biggest win about this game is the fact that I can easily pick and play the game. The ship following the mouse with the mouse click firing is very understandable and a great control scheme. I love the power-up system and enjoyed the slow progression in the difficulty level.
Good Job!