This is a cool concept, and I hope you're able to come back to this and add more levels. In case you do, I should also mention that on my first play I ran into a bug where the 'real' version of me was stuck to the ground and couldn't move, even when my reflection was dead. I wasn't able to replicate it after refreshing the page though, and otherwise everything felt pretty solid. Good work, and I hope to see more in the future!