This was a very simple, fun game. I liked the art, random enemy spawning and the ability to upgrade your ship. I didn't feel as though the power up augments were worth it because I could take out the enemies with one shot after upgrading it 2 or 3 times. In contrast the cooldown augment was very useful as I could fire more quickly. I would have liked to see different types of enemies, perhaps ones that moved side-to-side slightly to increase the challenge and also a boss enemy that appears near the end to signify that the game is about to end. Really cool game, I really enjoyed it.