King of Fighters Cheats

Unlock Zero as a playable character in KOF 2000
In order to unlock Zero, play through Party Mode unlocking every hidden Striker in the game. Party Mode will instruct you on how to unlock the Strikers until you've unlocked them all. Once this is accomplished, you may select Zero for play in Single and Team Versus or Practice Modes. In order to select him, choose your character and Striker normally at the Character Select screen. Once the Order Select screen comes up, select your primary character with the X button WHILE holding down Up+Square or Up+Circle (For Player 1 or Player 2 colors respectively). It is easier to, once you've chosesn your characters at the Character Select screen, immediately press and hold down Up+Square or Up+Circle before the Order Select screen comes up, and then, while still holding them down, press X to select the character at Order Select. If you've done it correctly, a mechanical noise will sound and Zero's head shot will replace your character's. You'll be playing as Zero when the round starts!

Get ThisBy Doing This
Zero in Team/Single Versus & Practice (KOF 2000 only)Unlock all hidden Strikers in Party Mode. Hold Up+Square or Up+Circle and press X to select your primary character at the Order Select screen.

King of fighters 2000 strikers
These strikers are not usable characters,
You should play party mode to unlock the following strikers.

Get ThisBy Doing This
Striker: Heavy D, Lucky and BrianDefeat 14 characters in party mode or play 5 hours of game play.
Striker: Blood Iori and Blood leonaDefeat 27 opponents in party mode.
Striker: Wolfgang Krauser and Mr.BigDefeat 36 opponents in party mode.
Striker: HiedernDefeat 40 characters in party mode
Striker:Orochi(Blood)Defeat 70 opponents in party mode
Striker: KrizaldDefeat 99 opponents in party mode.

Kof 2000:King of fighters classic sequences

Get ThisBy Doing This
KOF 94 videoPlay more than 10 hours of game play.
KOF 95 videoGet a 30 hit combo in Practice.
KOF 96 videoSet the life recover option to quick in practice mode and completely make your dummy's health go down.
KOF 97 videoGet 200 ability points in Single play.
KOF 98 videoGet 300 ability points in Team play.
KOF 99 videoSuccesfully complete the game under the expert difficulty setting!