Just launched the game and immediately lost. 😄

The idea with the level dynamically changing as you go is pretty cool, but the game feels pretty rough around the edges right now. You can tell there were plans to add a timer and more levels. I said this about a previous game, but I think a "Super Meat Boy" style replay mechanic showing all your attempts at once on a successful run would fit really well here too. If you plan to keep working on it, make the reset button more noticeable. I actually had to look around for it. 😄

I ran into some bugs playing in the browser. The buttons for level 3 and 4 were not working, locking you out of progress. And since the game starts immediately after choosing a level, you've got barely any time to react. In the first level this means you (likely) fail almost instantly. A grace period would help! Also could use a reset option that does not require you to go back to the level select screen.