Press Left(2), Right, L, Left, Right(2), R(2), L at the character selection screen. A sound will confirm correct code entry.
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100%
Champion costumes
Added on
at
Press Left, Down, Right(2), Up, R, L, R(20), L at the character selection screen. A sound will confirm correct code entry. Alternately, win the game in championship mode to unlock the champion costumes. Press X to cycle through the costumes.
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100%
Holiday costumes
Added on
at
Press Left(2), Down, Right, Up, R(8), L, R(4), L at the character selection screen. A sound will confirm correct code entry. Press X to cycle through the costumes.
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100%
All training
Added on
at
Press Left, Down, Up, Down, Up, R(20), L at the character selection screen. A sound will confirm correct code entry.
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100%
New Year's Day secrets
Added on
at
Press Right, Up, Down(3), R, L at the character selection screen. A sound will confirm correct code entry. Alternately, set the system date to January 1 to unlock a Baby New Year's costume for Joey T.
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100%
Valentine's Day secrets
Added on
at
Press Right, Up, Down(3), R(2), L at the character selection screen. A sound will confirm correct code entry. Alternately, set the system date to February 14 to unlock a lover's costume for Lulu Valentine.
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100%
St. Patrick's Day secrets
Added on
at
Press Right, Up, Down(3), R(3), L at the character selection screen. A sound will confirm correct code entry. Alternately, set the system date to March 17 to unlock a leprechaun costume for the referee.
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100%
Easter secrets
Added on
at
Press Right, Up, Down(3), R(4), L at the character selection screen. A sound will confirm correct code entry. Alternately, set the system date to April 23, 2001 to unlock a bunny costume for Mama Tua.
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100%
Independence Day secrets
Added on
at
Press Right, Up, Down(3), R(5), L at the character selection screen. A sound will confirm correct code entry. Alternately, set the system date to July 4 to unlock an Uncle Same costume for G.C. Thunder.
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100%
Halloween secrets
Added on
at
Press Right, Up, Down(3), R(6), L at the character selection screen. A sound will confirm correct code entry. Alternately set the system date to October 31 to unlock a skeleton costume for J.R. Flurry.
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100%
Christmas secrets
Added on
at
Press Right, Up, Down(3), R(8), L at the character selection screen. A sound will confirm correct code entry. Alternately, set the system date to December 25 to unlock an elf costume for Selene Strike and a snowman costume for Rumble Man.
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100%
Thin boxer
Added on
at
Press Right(2), Up, Down, Right, R, L at the character selection screen. A sound will confirm correct code entry.
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100%
Big gloves
Added on
at
Press Left, Right, Up, Down, R, L at the character selection screen. A sound will confirm correct code entry.
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100%
Big head
Added on
at
Press Right(2), Up, Down, Right, R(3) at the character selection screen. A sound will confirm correct code entry.
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100%
Faster speed
Added on
at
Press Right(2), Up, Down, Right, R(4), L at the character selection screen. A sound will confirm correct code entry.
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100%
Fastest speed
Added on
at
Press Left(2), Down, Up, Down, Right(2), R(19), L at the character selection screen. A sound will confirm correct code entry.
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or
100%
Extra camera angles
Added on
at
Press R(20), L, R, L, R(21), L, R(18), L, R(9), L, R(14), L, R(5), L, Left, Right, Up, Down, L at the character selection screen. A sound will confirm correct code entry. Pause game play to access fifteen new camera angles.
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100%
Freak E. Deke
Added on
at
Successfully complete the game in arcade mode to unlock Freak E. Deke.
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100%
G. C. Thunder
Added on
at
Successfully complete the game in arcade mode three times to unlock G. C. Thunder.
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100%
Shaquille O'Neal
Added on
at
Successfully complete the game in arcade mode five times to unlock Shaquille O'Neal
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or
100%
Rocket Samchay
Added on
at
Successfully complete the game in arcade mode seven times to unlock Rocket Samchay.
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100%
Robox Rese-4
Added on
at
Successfully complete the game in arcade mode eight times to unlock Robox Rese-4.
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100%
Hillary Clinton
Added on
at
Successfully complete the game in arcade mode ten times to unlock Hillary Clinton.
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100%
Super Uppercut
Added on
at
Get "Rumble" three times (the light orange/yellow, red, white color). After that, press R + L to get the white gloves then hold X + Y a few times. Your boxer should knock your opponent out the ring and win by a K.O.
