Itch version does not work because you have whitespaces in some of your assets. Itch does not like whitespaces. If you rename those assets, it should work here as well.
Okay, the level design is very nice on this one. I had to mentally plan my run by looking at the pattern of the obstacles. That was fun. Would have loved to see a few more levels. But it wasn't clear how the theme was used in this game.
The plan was that enemies will attack the player with fire, obstacles will symbolize fire, and the player's temperature will rise constantly. To survive, the player had to collect something cold (instead of coins) or will die. However, the time was short for designing and developing it.