Great wave-based shooter game! Love the art-style, along with the audio. Felt very polished; looks like your using some postprocess shaders to get a 32bit retro style. Very nice. If I have a criticism, not sure if it is just me, but I found the camera rotation via Q + E awkward. My only thought is that if you just had it like a third person camera controller, so it is rotated via the mouse look. That may make it at least less awkward for me. But I can see how that would likely raise other issues and perhaps remove some of the challenge and uniqueness from the game. Still lots of fun!