Awesome game! Really impressive work and great concept! I do wish that the cube could be toggled to hold and that there were more landmarks for orientation, but this is a jam game, we all know the struggle :P. With some optimization so it feels a little faster and some more levels and decoration, you've got yourself a game that I'd pay a little money for. I do want to say again that it is really impressive that you did portals for a jam game, so great work!