Project '00

Project '00, pronounced as Project Double Oh, was a betrayal plan enacted by Clone Zero.

Story
After the failure of Project Krizalid during the climax of The King of Fighters '99, Clone Zero begins to secretly build his own weapon from NESTS' technology called the "Zero Cannon", setting it to operate with the same technology found in Krizalid's battle armor.

He sets his plans into motion in The King of Fighters 2000. There, he kills and impersonates Ling, a military commander and close friend to Heidern. Using his Ling persona as a decoy, he tricks and captures Heidern to stop the military resistance against him. He then fights the winning team of the tournament, planning to use their fighting capacities to power his Zero Cannon, which he demonstrated by blowing up South Town. After his defeat, he attempted to fire another shot from the Zero Cannon, but his plans were foiled by Kula Diamond, Foxy, Diana and Candy Diamond, who redirected its shot towards his location, critically injuring him.