The Sigma Force are an elite group of robots that work for General Rilldo, that consists of Nezi, Natt, Ribet, and Bizu.


The Sigma Force first encounter Goku, Pan, and Trunks when they are exploring Planet M-2. They capture Goku and Trunks, but leave Pan behind. Later when Pan enters Rilldo's base, Natt is deployed to take care off her, but he is destroyed. Later when Goku fights them, the rest of the Sigma Force combine into the powerful Sigma Force Cannon.


  • The Sigma Force are slightly similar to the Ginyu Force. They are an organized team of fighters and they both pose before fighting, though the Sigma Force does it less.


           Dragon Ball GT Villains

Machine Mutants
Baby | Dr. Myuu | General Rilldo | Dr. Gero | Hell Fighter 17 | Super 17
Luud Cult: Dolltaki | Luud | Mutchy Mutchy
Sigma Force: Nezi | Natt | Ribet | Bizu | Sigma Force Cannon

Shadow Dragons
Haze Shenron | Rage Shenron | Oceanus Shenron | Naturon Shenron | Nuova Shenron | Eis Shenron | Syn Shenron

Don Kee | Ledgic | Lord Yao | Mamba | Susha | Torga | Sheela & Gale | Zoonama