This is a really well made shooter, there's a lot of polish on it. The movement and shooting feel great, very satisfying. I love the little drift you put on the ship when it starts moving up and down, and the dash is snappy. The graphics are all really well made and all support the theme.
I got the ship upgraded all the way and was blasting through everything. It was a tad easy at this point, and I wouldn't of minded larger spawns of enemies. I do love the breaking of the space rocks into multiple chunks.
There's the starting works of something great here, I'd love to see it fleshed out further.