Thanks so much for the feedback! Yeah, I've gotten comments about the platforms not being one way. There is a way to do it, but I only discovered how to do so after the Jam submissions were over! I plan to implement it in the patch as soon as I can.
I'll look into making a way to swap between Arrows and WASD for controls and abilities in the future. Since this was my first time ever using Godot, I didn't have the knowledge to do something like that in the time allotted.