Select any mode except story on the Spaceport-themed pre-made map that is saved in Mapmaker. Soon, most of the bots in the match will go through the yellow teleport, leading them to a large room that drops down onto a lower level and has no exit, sort of like a pit. Almost every time one of the bots goes through the teleport, they jump into the pit and either don't move at all for the rest of the match or get stuck in place running into each other.