I'll second dan.collins.dev's positive points about the consistent aesthetics, variety of abilities, and clever UI. (I'm also team WASD, so agree on that nitpick as well.)
For me the biggest issue was the single-button quit. I twice hit ESC by mistake to exit out of the map view and ended up quitting the game. After the second time, I couldn't face starting over again. I highly recommend a confirm modal on a destructive action like that.
My other nitpick would be the wall-climb speed. I didn't encounter anything in as far as I got (which was as fas getting the M ability) that seemed like a gameplay need for it to be so slow, so I don't know if it would break something later to speed it up, but I would love to have it almost twice as quick as it is now.
Overall a great entry: very polished, well designed, great synergy across the visuals, audio, and mechanics.