This looks pretty great!
A minor thing, but I cannot use my gamepad on this web version---I can use my joypad/d-pad just fine to move, but I can't use buttons to jump or open the portal. I'm not sure why, but I thought you should know.
Thanks! What controller do you use? I tested it on Switch and Xbox controllers.
It's a generic Logitech controller that is supposed to be able to emulate other controllers.
Specifically, it's a "Logitech gamepad F310"