|Debut||"Giru's Checkered Past"|
|Date of death||Age 789|
Nezi, Natt, Ribet, and Bizu make up General Rilldo's top mercenary force, the Sigma Force. They are called upon when Dr. Myuu demands "results". Similar to the Pilaf Machine, Nezi and his elite have the ability to join their metal bodies into an even more powerful soldier, the Super Mega Cannon Sigma. This form is a fusion of the Sigma Force. They have a large variety of moves, such as eye beams and drills. They are easily beaten by an enraged Goku.
Nezi and the rest of the Sigma Force first appear while Goku, Pan, Trunks and Giru are searching around the planet M-2. Giru leads the group to the Sigma Force upon orders from General Rilldo to capture the three Saiyans. Nezi is able to identify that Goku is a Saiyan the moment they meet. When Bizu captures Goku and Trunks by encasing them in metal, the Sigma Force fly off to report their success.
Before Goku escapes from his container, Nezi and the rest of the Sigma Force are fed data of Goku, Trunks, and Pan's fighting styles and techniques in order to fight against them. When Goku escapes, Nezi begins to battle with Goku, mocking Goku's skill throughout the match. However, when Goku eventually shows more of his power and starts to overpower the Sigma Force, Nezi and the others fuse to create the Sigma Force Cannon. However, Goku still manages to defeat the Sigma Cannon with relative ease.
- Hikou – The ability to fly without the use of ki.
- Liquefy Ability – The ability to liquefy and go through metal.
- Super Explosive Wave – A wave of energy more powerful than the simple Explosive Wave. The four Sigma Force members use it in combination during their first encounter with Goku, Trunks, and Pan.
- Afterimage Technique – A technique Nezi performed once on Goku in Dragon Ball GT.
- Eye Laser – The ability to shoot a laser from its "eye".
- Super Mega Cannon Sigma – This is when Nezi, Ribet and Bizu join their bodies together to create one giant even more powerful robot known. In this form, they can then form the Sigma Force Drill.
|The Machine Mutants|
|Leaders||Baby • Dr. Myuu • General Rilldo • Giru|
|Sigma Force||Commander Nezi • Bizu • Natt • Ribet • Super Mega Cannon Sigma|
|Luud Cult||Cardinal Mutchy Mutchy • Dolltaki • Leon • Luud • Para Brothers • Unnamed Mercenary|
|Related articles||Para Brothers' spaceship • Planet Luud • M-2 • Dr. Gero • Hell Fighter 17 • Super 17|