(I got spoiled to the twist a little bit before playing the game, but not enough where it didn't still surprise me)
Awesome concept that makes the game significantly more interesting on replay! Realizing that the power-ups made the late game harder was The controls felt pretty wonky, but that's cuz I'm personally not used to using the K and Shift keys while using WASD (I'd have done something like Arrow Keys, Z, X, C). The jump also felt a little awkward, but I eventually got used to it.
These are only minor nitpicks though tbf! This is a stellar platformer with an incredible twist ^^