The following are known Action Replay Codes for The King of Fighters 2001 on Sony Playstation 2 (PS2). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark (Version 1 & 2)

Master Code – Must Be On
0E3C7DF2 1853E59E
EE8DBA6A BCBAD7FA

Player 1 Codes

Infinite Health
C1FAF976 BCA99BE9

Low Health
C1FAF976 BCA99B84

Quick Power Up
C1FAF9A6 BCA9BF83

Never Power Up
C1FAF9A6 BCA99B83

Level 0
C1FAF898 BCA99B83

Level 1
C1FAF898 BCA99C83

Level 2
C1FAF898 BCA99D83

Level 3
C1FAF898 BCA99E83

Level 4
C1FAF898 BCA99F83

Player 2 Codes

Infinite Health
C1FAFF76 BCA99BE9

Low Health
C1FAFF76 BCA99B84

Quick Power Up
C1FAFFA6 BCA9BF83

Never Power Up
C1FAFFA6 BCA99B83

Level 0
C1F9FE98 BCA99B83

Level 1
C1F9FE98 BCA99C83

Level 2
C1F9FE98 BCA99D83

Level 3
C1F9FE98 BCA99E83

Level 4
C1F9FE98 BCA99F83