I liked the game, but the boos at the end is too tedious and boring. I could sometimes sit in one spot for most of the battle without worrying about being hit except for in the second stage with the homing energy ball. The other bosses were short and sweet, which was good. There is a lot you could have done to make it more challenging (I didn't get the Red Victory medal because I failed to look at them closely beforehand and I don't want to replay it to get it and I like medals).
Still, this is good for a project you did nearly by yourself. On a note, if you make another similar game, could you make it so the special I select in the former part of a map stay selected.
Also, I have no idea how to get the secret medals. I went to the more option in the menu and clicked on the links, but I didn't get anything.