The Sonic Sumo (El Sónico Sumo) is a student who appears to be a masked sumo wrestler from Japan with high tech gear. His main wrestler is the Flea. He unintentionally gave Rikochet his signature move the "Pulverizing Pinball" when his electronics shorted out during a match leaving Rikochet stuck as a human ball for a day.
- Sonic Catapult-turns into a ball and lunges towards his opponent causing an explosion
- Sonic Freeze-Freezes the opponent. Only used when opponent used his/her signature move
- Sonic Stun-stuns the opponent