Good game! We took a similar approach in our game with the concept. I'd suggest adding the controls from the start, so players don't need to figure them out on their own. Another improvement could be providing an easier way to switch modes, perhaps using the mouse wheel, so players don't have to release their fingers from WASD to make the change.

Cool concept and I liked how you included the mode theme. It took me a while to figure out the controls, I'd list them somewhere if possible.

I like that changing how you character acts. I would recommend putting the controls on the itch.io page so players can know how to play the game. Had to brute force to figure out what buttons do what.  

Decent game - Great enemies. Not sure if this is a quirk of my machine but the game launches Steam VR randomly on launch. Was still able to play though.