Aesthetic is very cool! In terms of control, I'd had put jumping and dashing in two consecutive keys for the right hand, while handling walking with the left. I am quite bad at this kind of games, but I think the game is also quite difficult (this is not bad). I feel that the game would get more engaging if challenges increased progressively (the first jump my scare some newcomers) and had a clear checkpoint (got three floors up and the checkpoint key sent me to the start) after them, like a chain of challenge-reward-challenge-reward... It feels like these "easy to get, hard to master" games, and the basics are already polished so, if you feel for it, you should keep polishing the gameplay. It could turn in one of those games streamers play to challenge their mental, hehehe.