Yo, it was real good, but...
This game was really fun to play. I enjoyed the bullet graphics, and I lurved the explosions. The power-ups, so far as I know, were very original.
BUT! I AM DYING FOR AN AUTOFIRE BUTTON for the small gun - this is my most important point. MY MOST IMPORTANT POINT!!!
Also, I think there is too longer gap between the level beginning and the level boss. Thirdly, I think that if you collect the same powerup more than once in a row, it should be better - e.g. scatter gun from three to 5 bullets (maybe.) Finally, ship styles changing more between planets would be nice.
Aaanyway, that's a lot of moaning, so I'll stop getting at you now. Generally v. good, so DON'T go jump off a cliff or anything until you have made the best shooter ever. You know you can.