|Breedable?||Elite versions only|
Z-0 is a cyber soldier mutant just like Project X-27 with the difference that Z-0 is already dead and don't equip guns as weapon. Z-0 looks like a heavily armed giant cyber soldier with an incomplete human body in the middle which controls the whole suit. Its left arm is a big flamethrower.
- Attack: Destructive
- Life: Tank
- Speed: Slow
“You all know Project X27 as one of the ultimate cyber soldier. Creating it was not as easy as you could think and many voluteers were injured or did not survive the first trials. Z-0 is the very first version of the perfect soldier's researches held around 2020. As you can see, it did not go well for him...”
- Z-0 is a fail version of Project X27.
- Z-0 is a Necro-Cyber mutant with Retaliate ability, which is taken after the Project X27's Retaliate ability.
- Its Cyber attack named "Flame thrower" which is also used by Robot.
- Its name is the shortest in the game.
- Silver, Gold and Platinum versions of this mutant seem to be based on the Chaos Space Marines from the Warhammer 40k universe.