Team 25 just made a game using a simple robot arm. It had no base so you couldn't drive it and the arm was only able to move very, very slowly. There was a hook at the end, which could pose a potential danger, but we made sure no one was anywhere near our arm. The goal of the game was stack mini tetras on various goals.
This game was displayed at Brunswick Eruption 4.0.
JUST IN CASE anything went wrong, we had a switch close and ready for safety's sake.