This was nice, I like the interpretation of the special object, very creative :)
I think some things to look into that could improve the game would be some tweening algorithms for the player movement, currently its quite floaty, but you could make it more refined with some tweening.
I also think that more time could have been spent on the presentation and polish -- stuff like getting hit causing a screen shake or something like that.
Great job though, this is very impressive for a one person team under a time limit!