Finally got around to watching the video, you were so close to beating it much earlier! It was great to see you get into the rhythm of switching between particle and wave to go through walls, I was yelling to try to get you to expand near the exit to try to get out, but I think the scroll sensitivity wasn't high enough for you to do that. (I've had other feedback saying it would be nicer if it was more sensitive)
Certainly a few ways I could go with this idea, I'm think a more puzzle-y sort of game might be best. Could even introduce other things like the double slit experiment and quantum teleportation which might be cool, but those are funny suggestions too!