They were the result of Galactic Federation scientists on the BOTTLE SHIP trying to create a special forces unit based on the Space Pirates. The Zebesian type were to form the core of this unit. The scientists had presumably captured Pirates and experimented on them in order to create successful bioweapons. The synthetic implants made by the Federation are quite crude compared to those created by the Pirates themselves (seen on various Pirate classes encountered throughout the Metroid Prime trilogy).
When searching the Exam Center, Samus discovers an inactive Cyborg Zebesian making strange beeping noises and notices a Federation mark on its armor, leading to the revelation that the Federation was using the BOTTLE SHIP to create bioweapons. Later, when searching deeper into the building, Samus is ambushed by several Cyborg Zebesians and they appear as regular enemies after that.
Their claws are sometimes completely replaced with prosthetic ones. These can fire Missiles as well as beams. Their armor begins to break off as they take damage, revealing their Arm Cannons below the prosthetic claws and snapping off the fins on their backs. If Samus gets close, they will grab her. If she does not counter, the creature will slam her into its other claw then, while holding her, will hit her and inflict damage. If she is successful in countering, she will perform a spinning jump kick to the creature's head and knock it over, stunning it. If Samus performs an Overblast on the creature, it will be forced into a hunched posture. If Samus does not fire, the creature will straighten up, grab her, and then throw her on the side. The Cyborg Zebesians can be knocked down to ground and Samus can perform a Lethal Strike on them. She will grab its neck and swing around it, forcing it to kneel, then unleash a point-blank blast into its head.
Later in the game, Samus encounters Super Zebesians, a more powerful and lethal version of a regular Cyborg Zebesian. These Super Zebesians are enhanced with tougher, red armor, are more agile, and possess the ability to charge their cannons to fire permeating beam shots. These Zebesians replace most Cyborg Zebesians.
- A possible explanation for the cause of "death" of the first Cyborg Zebesian Samus encounters is that its batteries ran out of energy. Concept art states that batteries are mounted on the back.
|Space Pirates||Bombu • Class I Energy Harvester • Elite Pirate • Megaroid • Metroids • Mimic • Omega Pirate • Phazon Elite • Preed • Puffer Mine|
|Galactic Federation||Cyborg Zebesian • Nightmare • Queen Metroid • Super Zebesian • Unfreezable Metroid • X Parasite (desired) • SA-X (desired)|
|Other||Kanden • Quadtroid|
|Related||Bioweapon Research Center • Project Metroid Warriors •Special-forces unit|
|Hybrids||Asborean • Chozo Statue • Darkling • Dark Samus • Dark Suit • Light Suit • PED Suit • Samus Aran • Unnamed Suit|
|Biomechanical||Aurora Unit • Security Robot B.O.X. • Cortex Chamber • Dark Diligence Drone • Dark Ingsmasher • Dark Quad • Fusion Suit • Mother Brain • Nightmare • Quadraxis • SA-X • Space Pirate Boarding Pod|
|Cyborgs|| Crash Pillar • Cyborg Zebesian (Super) • Ghor (-G) • Kyratian • Leviathan Battleship • Pirate Militia • Preed (Dark) • Puffer Mine • Ridley (Meta/Omega) • Samus Aran • Slench • Space Pirate • Weavel • Zebesian |
Large Leviathan-class armed ship • U-ton