The following are known Action Replay Codes for Knockout Kings 2002 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
EE8B7E3A BCCA4112

Infinite Health P1
FEBE6EFB BCA99B85

Infinite Health P2
FEBE6EFB BCA99B86

Infinite Health Both Players
FEBE6EFB BCA99B87

Infinite Stamina Both Players
DE8898A6 BF899B8B

P1 – Easy KOs
FEBE6EF9 BCA99B85

P2 – Easy KOs
FEBE6EF9 BCA99B86

Both Players – Easy KOs
FEBE6EF9 BCA99B87

Arms Stretch When Punching
DE97DC8A BCA99B84

Turbo Mode
DE97DC96 BCA99B84

Invisible Bodies
DE97DC92 BCA99B84

Giant Boxers
DE97DC9E BCA99B84

Mini Boxers
DE97DC9A BCA99B84

Press R1 To Teleport
DE97DCA6 BCA99B84

Tag Mode
DE97DCAE BCA99B84

Huge Hands
DE97DC82 BCA99B84

Heads Inflate When Hit
DE97DC86 BCA99B84
DE97DC8E BCA99B84

Inf Creation Points
FEBE644E BCA99B4B
FEABA39A BCA99B4B

Max Stats Created Character
DEBE6476 BBA89A82
CEBE6472 BCA99A82

Max Power
FEBE6476 BCA99B82

Max Speed
FEBE6471 BCA99B82

Max Stamina
FEBE6470 BCA99B82

Max Chin
FEBE6473 BCA99B82

Max Heart
FEBE6472 BCA99B82

Max Cuts
FEBE647D BCA99B82

8 Foot Created Character
CEBE646A BCA99BE3

9 Foot Created Character
CEBE646A BCA99BEF

300 Pound Created Character
CEBE6474 BCA99CAF

400 Pound Created Character
CEBE6474 BCA99C13