Cheat mode
 
 At the character selection screen, press Left, Right, Left(2), Right,
 Up, Down, R1(5), R2 to unlock all boxers, costumes, and more. If you
 entered the code correctly, you will hear a sound. Press Square to
 cycle through the costumes. 
 
 All boxers
 
 At the character selection screen, press Left(2), Right, R2, Left,
 Right(2), R1(2), R2. If you entered the code correctly, you will hear
 a sound. -From: TrowaBartonMSG03@aol.com
 
 All champion costumes
 
 At the character selection screen, press Left, Down, Right(2), Up,
 R1, R2, R1(20), R2. If you entered the code correctly, you will hear
 a sound. Alternatively, successfully complete championship mode to
 unlock the champion costumes.
 
 All holiday costumes
 
 At the character selection screen, press Left(2), Down, Right, Up,
 R1(8), R2, R1(4), R2. If you entered the code correctly, you will
 hear a sound. 
 
 All training
 
 At the character selection screen, press Left, Down, Up, Down, Up,
 R1(20), R2. If you entered the code correctly, you will hear a sound.
 
 Set holiday to New Years
 
 At the character selection screen, press Right, Up, Down(3), R1, R2.
 If you entered the code correctly, you will hear a sound.
 
 Set holiday to Valentines Day
 
 At the character selection screen, press Right, Up, Down(3), R1(2),
 R2. If you entered the code correctly, you will hear a sound.
 
 Set holiday to St. Patricks Day
 
 At the character selection screen, press Right, Up, Down(3), R1(3),
 R2. If you entered the code correctly, you will hear a sound.
 
 Set holiday to Easter
 
 At the character selection screen, press Right, Up, Down(3), R1(4),
 R2. If you entered the code correctly, you will hear a sound.
 
 Set holiday to Independence Day
 
 At the character selection screen, press Right, Up, Down(3), R1(5),
 R2. If you entered the code correctly, you will hear a sound.
 
 Set holiday to Halloween
 
 At the character selection screen, press Right, Up, Down(3), R1(6),
 R2. If you entered the code correctly, you will hear a sound.
 
 Set holiday to Thanksgiving
 
 At the character selection screen, press Right, Up, Down(3), R1(7),
 R2. If you entered the code correctly, you will hear a sound.
 
 Set holiday to Christmas
 
 At the character selection screen, press Right, Up, Down(3), R1(8),
 R2. If you entered the code correctly, you will hear a sound.
 
 Set holiday to New Years
 
 At the character selection screen, press Right, Up, Down(3), R1, R2.
 If you entered the code correctly, you will hear a sound.
 
 Fat boxer
 
 At the character selection screen, press Right(2), Up, Down, Right,
 R1(2), R2. If you entered the code correctly, you will hear a sound.
 
 Thin boxer
 
 At the character selection screen, press Right(2), Up, Down, Right,
 R1, R2. If you entered the code correctly, you will hear a sound.
 
 Undead boxer
 
 At the character selection screen, press Left, Up, Right, Down,
 R1(2), R2. If you entered the code correctly, you will hear a sound.
 
 Big head
 
 At the character selection screen, press Right(2), Up, Down, Right,
 R1(3). If you entered the code correctly, you will hear a sound.
 
 Big gloves
 
 At the character selection screen, press Left, Right, Up, Down, R1,
 R2. If you entered the code correctly, you will hear a sound.
 
 Faster gameplay
 
 At the character selection screen, press Right(2), Up, Down, Right,
 R1(4), R2. If you entered the code correctly, you will hear a sound.
 
 Hyper speed mode
 
 At the character selection screen, press Left(2), Down, Up, Down,
 Right(2), R1(19), R2. If you entered the code correctly, you will
 hear a sound. 
 
 Additional camera views
 
 At the character selection screen, press R1(20), R2, R1, R2, R1(21),
 R2, R1(18), R2, R1(9), R2, R1(14), R2, R1(5), R2, Left, Right, Up,
 Down, R2. If you entered the code correctly, you will hear a sound.
 Pause the game to find 15 new camera angles.
 
 Start at final match
 
 At the character selection screen, press R2, Down, Right, Up, Left,
 R1(6), R2, R1(2), R2. If you entered the code correctly, you will
 hear a sound. 
 
 View ending
 
 At the main menu, press Right(3), Down, R1, R2. If you entered the
 code correctly, you will hear a sound.
 
 Full level 1 Rumble meter
 
 Pause the game and press R1, R2, Down, Up(2), Left, R1(3), R2.
 
 Full level 2 Rumble meter
 
 Pause the game and press R1(2), R2, Down, Up(2), Left, R1(4), R2.
 
 Full level 3 Rumble meter
 
 Pause the game and press R2, R1(2), R2, R1, R2, R1(4), R2, Left,
 Right, Up, Down.
 
 Box as Freak E. Deke and Michael Jackson
 
 At the character selection screen, press R1(13), R2, R1(10), R2 to
 unlock Freak E. Deke and Michael Jackson. -From: esco_02@hotmail.com
 
 Box as Freak E. Deke
 
 Successfully complete arcade mode to unlock Freak E. Deke.
 
 Box as Michael Jackson
 
 Successfully complete arcade mode two times to unlock Michael Jackson.
 
 Box as G.C. Thunder
 
 Successfully complete arcade mode three times to unlock G.C. Thunder.
 -From: st0rmf1707@aol.com
 
 Box as Wild "Stubby" Corley
 
 Successfully complete arcade mode four times times to unlock Wild
 "Stubby" Corley. -From: st0rmf1707@aol.com
 
 Box as Shaquille O'Neal
 
 Successfully complete arcade mode five times to unlock Shaquille
 O'Neal. -From: st0rmf1707@aol.com
 
 Box as Freedom Brock
 
 Successfully complete arcade mode six times to unlock Freedom Brock.
 -From: st0rmf1707@aol.com
 
 Box as Rocket Samchay
 
 Successfully complete arcade mode seven times to unlock Rocket
 Samchay. -From: st0rmf1707@aol.com
 
 Box as Robox Rese-4
 
 Successfully complete arcade mode eight times to unlock Robox Rese-4.
 -From: st0rmf1707@aol.com
 
 Box as Mr. President (Bill Clinton)
 
 Successfully complete arcade mode nine times to unlock Mr. President.
 -From: st0rmf1707@aol.com
 
 Box as The First Lady (Hillary Clinton)
 
 Successfully complete arcade mode ten times to unlock The First Lady.
 -From: st0rmf1707@aol.com
 
 Box as Rumble Man
 
 Successfully complete championship mode with all characters, then
 complete arcade mode on the hard difficulty setting to unlock Rumble
 Man. -From: ka0s@flash.net
 
 Alternate costumes
 
 At the character selection screen, highlight a boxer and press Square.
 
 Hidden New Year's costume
 
 Set the system date to January 1 to unlock a Baby New Year's costume
 for Joey T. 
 
 Hidden St. Patrick's Day costume
 
 Set the system date to March 17 to unlock a leprechaun costume for
 the referee. 
 
 Hidden Valentine's Day costume
 
 Set the system date to February 14 to unlock a lover's costume for
 Lulu Valentine.
 
 Hidden Easter costume
 
 Set the system date to April 23, 2001 to unlock a bunny costume for
 Mama Tua. 
 
 Hidden Independence Day costume
 
 Set the system date to July 4 to unlock an Uncle Sam costume for G.C.
 Thunder. 
 
 Hidden Halloween costume
 
 Set the system date to October 31 to unlock a skeleton costume for
 J.R. Flurry. 
 
 Hidden Christmas costume
 
 Set the system date to December 25 to unlock an elf costume for
 Selene Strike and a snowman costume for Rumble Man.
 
 Game Shark Codez:
 
 
 Master Code (Must Be On) 
 EC87F520 1456E60A
 
 Infinte Health P1
 4C896BC8 1456E781
 
 Quick Recovery P1
 4C896BCC 1456E781
 
 One-Hit Kill P1
 4C896BC8 1456E7A6
 
 No Stamina P1
 4C896BCC 1456E7A5
 
 Infinite Health P2
 4C8A9238 1456E781
 
 Quick Recovery P2
 4C8A923C 1456E781
 
 One-Hit Kill P2
 4C8A9238 1456E7A6
 
 No Stamina P2
 4C8A923C 1456E7A5
 
 Unlock All Characters
 4C894034 1456E7A8
 4C894038 1456E7A8
 4C89403C 1456E7A8
 4C894040 1456E7A8
 4C894044 1456E7A8
 4C894048 1456E7A8
 4C89404C 1456E7A8
 4C894050 1456E7A8
 4C894054 1456E7A8
 4C894058 1456E7A8
 4C89405C 1456E7A8
 
 Championship Mode Codez:
 
 Max Cash
 4C8C0C00 1456B00C
 
 Max Strength
 4C8C0C02 14562B8F
 
 Max Stamina
 4C8C0C06 14562B8F
 
 Max Endurance
 4C8C0C0A 14562B8F
 
 Max Dexterity
 4C8C0C0E 14562B8F
 
 Max Experience
 4C8C0C12 14562B8F