I played this for over an hour, died 26 times, and ended up finishing it (despite the boss screaming about how it was impossible). I loved the soundtrack, the graphics where stellar in their simplicity, and the level design was unique and diverse. I would probably buy this for $5 if it had even more levels/expanded storyline. You should absolutely continue developing it and make it into a full app on the app store or publish it on steam perhaps. Its great!