Lovely little shmup, art style is spot on, the juice is real - absolutely fantastic. It was a little tough, but that's just because I'm not great at this sort of game xD great job! I don't even really have any nitpicks, other than the title screen needing a bit of work. Gamepad support is a MASSIVE bonus, too.
The only extra thing I'd want is an online leaderboard - http://www.dreamlo.com is a great service for that. It would've kept me going for ages!