I think most people already commented on how original and cool the concept and the game itself are. So, I just want to add that although the game fits the theme and is executed great, if you ever consider expanding the game, make sure to not over punish the players. When the main concept is "as better your at the game, as bigger the punishment will be" can quickly to lead to the decreased motivation to play the game. You made quite a good balance to make sure it won't happen in your game, but still, be careful with that. Maybe, you can add some more rewards for actually playing without mistakes as much as you can. But overall, the concept is great, the execution is even better, and the colors used for visuals only add to the game. Nice one!