First of all: for a jam entry this is really polished and the 2,5 D art style is phenomenal for a jam in terms of balancing efficiency and aesthetics. Where I think you could still improve the game is: treating player bias. The character seems to be very floating, especially when doing very precise jumps (like in the part with the switches and the switching platforms). You could add something like a coyote time and also buffer inputs. E.g. that if the player presses jump before touching the gound, that the input is buffered and then executed, when the player touches the ground.
It is very good that you added stuff like alternative controlls schemes and a map. This really makes the game feel like a well-rounded experience.
Great Job!