Cute concept and fun for the most part! I gave up on level 20 after 10 minutes and 200 deaths or so. I think the hitbox on the spikes could be a tad smaller than their sprite, because when you're trying to wall jump over a wall with a spike on top of it, the hitbox feels a bit unnecessarily punishing. Aside from that, I really enjoyed the aesthetic - it was very simple but had some nice effects that elevated it.