Woah, I don't know how I missed this one when looking at older games. What I love about this is how truly awesome it is! While it may be that you fight the same enemies over and over, it's still great fun. I especally love when you get to kick an enemy off the screen in the air. I will admit that I have no clue whatsoever on how to beat the boss. I don't know why he has an ice gun of all things, but it's pretty awesome.
You probably could have put more variety in the enemies. It is kind of funny to see the main character explode when he dies. If you're going to lose the game, might as well show off a fun effect while it happens! Oh, now I understand how the boss works. Dang, I have to look at author comments first more.