Hmm... I can't see any cubes. When I click play, I just see a blank magenta screen, and then I die after a few seconds (I guess because I hit a cube I can't see?).
Ah that's annoying! What browser are you using?
Chrome, version 92.0.4515.159
Edit: I updated Chrome to 93.0.4577.63 and now it's working!
Great to hear!
