As expected, very cool! I've been watching you build it during the jam, and been excited to try it. I'm happy to report that I DIDN'T experience any motion sickness, though the camera could be a bit disorienting at times.
The idea is very unique and well executed, and it all looks great. My only real graphical complaint is that during the tutorial, when the environment was very white, I had a hard time keeping track of the cursor/aim mark.
The gameplay itself feels like a solid evolution/continuation of the Song of Morus games, and it was easy for a veteran of the series to jump right into. Weirdly enough though, I think one of my favorite parts was just dodging the signs (Very nice of Desdemona to warn me they were coming XD )
One other note... and this isn't your fault at all, but MAN did Norton want to murder your game. First it auto-purged the main executable. I forced it to restore it. This next part may be on me for not figuring out how to flag the whole folder as safe, but I've also never seen this before. When I ran the game, Norton systematically deleted EVERY DLL one by one, popping up annoyingly each time. Some how the game still ran fine... maybe they all loaded before being sent to Norton prison? I don't know if the game will run anymore without me re-unzipping it. Anyway, just letting you know... not sure what to do about that other than give the finger to Norton. I was having an issue like this with NW.JS exports for awhile, so I know too well that Norton is insanely aggressive.
Anyway, over-zealous antivirus aside, really great work! I'll definitely be back to check the future updates!