Game is good! I like the concept and all the art, particles, and movement feels good. A few things, first it's very hard to tell where you are in space. This is a problem with a lot of games in a 3D plane and it suffers more in this because the only thing in space is the cubes. Also, I often wasn't able to shoot a block because I couldn't tell where exactly my shots would go - this could be fixed with something like a reticle. Otherwise fun. And did you make the music, because I really like it!