Nice game, It was funny. Cube shapes fighting with capsules and other cubes is charming concept. Music was nice. You should work on camera, because when shooting and running down, player see much less, so fighting with enemies which are below you is harder than fighting with enemies which are above you because of the camera angle. It's a pity that you didn't add more visual effects when killing enemy or when player is hit. Another thing you should work on is level design. I felt that walls put in the levels are completely unneccessary (only one time I had opportunity to use it when fighting with enemy). You should give to the player more opportunities to use those walls or get rid of them.