The King of Fighters 2000 is a fighting game by Vast Fame, based on the game of the same name. The story is that Kyo and other fighters are participating in the big king of fighters tournament in Japan. Kyo and other fighters therefore of course want to settle out their rivalry or fury in fighting terms not word talking.
Alternate names (all of these versions are in Taiwanese)
King of Fighters 2000
King of Fighters S
King of Fighters S 99
King of Fighters 2005