When asked to design a tool that can shock your opponent with a stun gun, we had to work out a couple of factors. One, we needed the shock to be dialed in just the right amount. Too much, and we could cause serious side effects. Too little, and the combatants wouldn't experience the shock and pain of the gun. And second, we needed to make sure we kept the integrity or the challenge and didn't lose the ability for each person to be shocked, and shocked well..
With opposite worlds, we delivered and it produced a challenge on television that pushed the boundaries of the typical show.