This was fun, Seems like you were inspired by sonic too. The underwater boss was a dead ringer for one of the bosses in sonic except he had those globby things that weigh you down.
Not that it's really important, this game is more or less of a tribute anyways. It's fun, but I agree with some people about the flaws, mostly control mapping and diagonal shooting, would have made some of those boss fights far less... suicidal. You don't need to worry about laying down, if you can't jump an enemy you're playing the wrong kind of game, though I must admit ducking would add a little more strategy. All in all a great little shooter, 4/5.