Nice entry! This has a lot of potential and could easily have been one of my favourites with a bit more polish. As it stands, it's a solid start for a side-scrolling shmup, though the lack of backgrounds and enemy variety make it quite repetitive. The difficulty also didn't feel balanced at all; I played without taking any hits until about 300 points, and then suddenly got wiped out in one wave.
Great colour palette btw!