Heavy on the presentation, looks great! IDK if i'm just really really unlucky but I kept getting bugs like my player disappearing into portals, the player/boxes being too big to actually push into the portal, and i'm pretty sure there was one time the box came out the wrong side of the portal.
Granted with the addition of a reset button this was largely negated, but these kinds of glitches seem to happen to me a lot. Other than that, the actual game feel is very polished. Only other thing I would say is the music feels a bit loud. However, you guys did a great job!