Pretty decent start. I really like the art style you are going for here (big softie for the minimalist black and white with excessive glow), but as far as the actual game goes, I think it could use some work. The combat itself doesn't really feel like combat, and there is no way to lose (which is crucial to most games, and I would argue a game like this). If I were you I would keep working on this, I think you could have something cool here.