This is a fantastic piece of work, with a gorgeous black and white aesthetic, and impeccable level design. The fact that you were able to make the whole map traversable, despite whatever order the player chooses to sacrifice their abilities is an incredibly impressive feat. I will say though, that while the sacrificing of abilities fits the themes perfectly, it does make for a bit of a frustrating experience at the end of the game, especially once you lose the wall jump ability. Otherwise, my only piece of feedback is that some of the enemies seemed unavoidable at times, as only shooting horizontally makes it difficult to hit enemies above or below you, especially when you are on ladders. But overall, this is an absolutely top-tier, polished piece of work. Well done!