In the early ROBO-ONE competitions there was always a 'Rumble' competition featuring the top robots trying to knock each other totally out of the ring. It was a robot version of 'King of the Hill' or 'Last Man Standing', and it was always a tremendous amount of fun.
Somewhere around ROBO-ONE 10, the Rumble was dropped from the lineup. But, thankfully, it's still a key part of independent competitions like the Wonderful Robot Carnival. Last weekend, at the 4th Wonderful Robot Carnival, 40+ robots participated in the Rumble, though they were split into 4 individual groups since it would have been total chaos if they all tried to fight at once.
Here's how it turned out: