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UK== RW (extra page)
RR 1 & 2 (2 not in use)
RL ().
RL and RR
US[]
Battlebots 1
The 1st Battle Bots arena was fully encolsed. It was one of the smallest HW arenas ever. Hazards included hammers, saws and spikes.
Battlebots 2 (very big)
The second BB arena was one of the largest ever. It was again fully enclosed (this time with a roof too). The only hazards were hammers (which were removed eventually).
Robogames 1 & 2.
Robogames is a grade 1 arena. It has 2 high walls, with glass very
close (so OOTAs are uncommon), and two lower walls, with a larger gap before the glass (OOTAs more common here).
As in Battle Bots opposing robots start in red and blue squares on either side of the arena.