I love the game, but I had the misfortune of having a messed up 'r' key hahaha. Regardless, this game is charming!
I like the core mechanic a lot.
One thing that confused me is that I didn't realize I could double jump, which would simplify matters.
I... didn't get past level #1 hahahaha. Once I reached that checkpoint below the start point, I had no idea what to do, and I had trouble backtracking.