Great job finishing this jam!!! It's not easy to make a full proof of concept. One thing I'd be excited for this game is potentially finding ways to use Soul Mode as a tool in combat as well: when I first played through the game, I had expected to be able to teleport to where I ended Soul Mode.
I would also consider some contrast on the lighting so that it's easier to see the geometry of each level.
Good work and looking forward to what you do next! :o