Really amazing game! Quite original and fun to play. I don't see where the connection is to the theme of "only one" is though. Can you explain that part to me? I checked the description and didn't see anything there about it either. As for gameplay there were only two main things that I would change. Firstly, I want something to try to achieve even if it is as simple as a high score with most things destroyed or longest time alive per flip. Secondly, the dash sometimes seemed unresponsive, I noticed you can't dash through walls that are too thick but it felt like there was a small cooldown on the dash too. I'd love to see something that tells the player this information, even if it is as simple as a sound that triggers when you try to dash but can't.
Other than those things I did enjoy the game quite a bit!