Good idea, poor execution
While I think that a platformer using Ikaruga polarity would be fun, this is not. The level design is uninspired, the game engine is terrible (no jumping left and firing and inconsistent hitboxes, among other things), and the only difficulty comes from unfairly placed enemies and the too-short timer in the last level.
In all, this game has potential, but it needs to be recoded and have some more thought put into the levels, as well as making the whole thing longer. I found it fun for a while, but these issues keep me from really liking it it.