[EricH]

Vertical pool noodles on the floor. Some may have metal bars inside; which ones is random. First you have to get there, then you have to climb up--and no, you still can't attach to the ceiling. Attaching to other robots is also verboten, though climbing onto alliance partners is a legitimate strategy. Start on the floor, though--oh, and you're starting on your opponent's end of the field, with screens in place to make vision spotty at best.

Oh, and I forgot about the water. At 30 seconds left in the match, the field gets about 1-2 inches of water, making it harder to get back to the bonus point area on your end. (Why only that much? It's a lot easier to waterproof 2-3 inches of field than the whole thing.)