XDDDD I was all "O__________O|||||||| ...wth" when I first stumbled across it in the game XDD (It didn't help that Big Baby was in there too.) Then after re-watching the pilot, it is indeed a Rumpus room. Basically the characters just go in there and bounce around the walls... and do stuff. It's kind of like the whole "screaming at the sea" or "throwing darts at a picture of the person you hate" equivalent I guess.
...of course I could be wrong.
