Thank you for the detailed feedback.
- You can reset any room from the pause menu.
- The concept of the third level is that the doors collision is bugged and so you must use/discover the undo bug to get around it. Not sure exactly what you mean with 2 new mechanics? You only need 1 of the 2 here.
- I agree with the fact I probably needed some way to hint at going to another level (doesn’t have to be previous one - they are all unlocked for a reason and can be completed in any order it’s not a linear set of puzzles ) this is why I rewrote the description with some extra hints. Maybe shouldn’t have numbered the levels or something.
- The 4th level can be completed without anything new (actually turns out the entire game can be completed using only the single main mechanic, the pause bug is never required oops)
- In most of my puzzle games I try to make the tutorial wordless and through the level design, although I feel in hindsight that maybe that doesn’t quite work here due to the mechanic being a bit abstract and difficult to discover. - although it does still seem to work for some people.