The googly eyes are glorious :p !
On a more serious note, the one way through platforms are really a good addition, this will improve the pacing and allow some "think fast" movement planning in multiplayer, i'd say gameplay wise the only thing left here that could be tweaked is that you can have the player jump when holding the jump key, i.m.o i think it could be better to have the jump be a "just pressed" key.
Other than that looking real good so far, and the improved UI eventhough you say it's not final, really feels clean and polished :)