Hello Igor, thanks for trying the game. The system was supposed to give more feedback to the player, but unfortunately we had to scrap the feature due to time constraints.
You are right about the second level, as there was an export bug we didn't catch. That's what happens when you test mostly in editor...
We fixed the bug an now players can access all 5 level. Unfortunately, I think we cannot update the current version of the project due to the Jam being expired. If you are still interested in trying all 5 levels, I can send you the version privately.