Your character is adorable and the "debug" view mechanic is a super fun idea. I definitely want to see more use cases on that. I think it'd be especially fun if there were tradeoffs to using it so I'm forced to make more interesting decisions, as I find that right now it makes the most sense to leave it on at all times. Good use of the theme, plus leaning into "breaking" the game to progress.
I'd love to see the movement polished up some, as the jump feels rigid when trying to get onto a platform. I'd also really enjoy having a drop shadow so I can see where I'm going to land. It's otherwise really difficult to judge distances (especially when your skyboxes are flat colors).
Keep up the developing and learning!