Cool concept for reverse bullet hell! Was a bit confusing the first time I tried but the instructions really helped (ok, it's my fault for skipping the instructions then I guess...). Having the enemies be both helpful and something you have to eventually kill is a great mechanic. Nice job with the art and sound as well. The planet changing color as your health depletes is a great touch, as is the enemies changing to be red when they are about to detonate. I think this game would be really good with a level-based progression system adding new enemies and mechanics as it goes. It's a bit overwhelming at the start right now. Overall it's a cool game, cool idea, and fairly polished execution, nice work!