Very fun! Also:
SinfulFuzzball, you're an idiot.
To quote the description, this game is "heavily inspired by Ikaruga." Way to point out what the Author has already said.
Other than that, a really fun game. Ikaruga was an awesome game, in part because of the Polarity mechanics, and I'm glad to see that there are people out there who have the guts to use the same mechanic, even though they know that others will see the game and say "lol Ikaruga" like a bunch of idiots.