I'm glad you had fun!
I was a bit unsure about how to teach the ground roll mechanic (it's basically just doing a spin dash diagonally into the ground) without resorting to an explicit "yellow paint" tutorial telling the player exactly what to do. That was the best solution I could come up with.
As for the second level, I think I was a bit too punishing by putting spikes on the wall before I'd properly introduced the wall jump mechanic. Unfortunately, I didn't have time to do any playtesting before the submission deadline, but afterward I realized people struggled with the second level much more than I expected.
Thanks for the kind words about the level design! I'd never designed platforming levels before, but I really tried to introduce the mechanics progressively. My original goal was actually to make something closer to Celeste than Jump King. I guess I ended up making it harsher than I intended, but I really appreciate the compliment!