Couldn't Polly be considered a shape-shifter because she's a ghost? [But if Beck goes back to the tables, he'll just help Higekiri open the fridges, but starting more on the opposite end. This is still a weird room and he refuses to be ambushed, thanks.]

...so, and this is just a morbid idea, but what if the room's rigged to where we have to lay on the actual tables? We couldn't do anything in the arcade until we logged in our names to play the games.