Ready 2 Rumble Boxing Round 2 Codes -

Champion costumes:
Win the game in championship mode to unlock the champion costumes.

Freak E. Deke:
Successfully complete the game in arcade mode to unlock Freak E. Deke.

Michael Jackson:
Successfully complete the game in arcade mode two times to unlock Michael Jackson.

G. C. Thunder:
Successfully complete the game in arcade mode three times to unlock G. C. Thunder.

Wild "Stubby" Corley:
Successfully complete the game in arcade mode four times to unlock Wild "Stubby" Corley.

Shaquille O'Neal:
Successfully complete the game in arcade mode five times to unlock Shaquille O'Neal.

Freedom Brock:
Successfully complete the game in arcade mode six times to unlock Freedom Brock.

Rocket Samchay:
Successfully complete the game in arcade mode seven times to unlock Rocket Samchay.

Robox Rese-4:
Successfully complete the game in arcade mode eight times to unlock Robox Rese-4.

Bill Clinton:
Successfully complete the game in arcade mode nine times to unlock Bill Clinton.

Hillary Clinton:
Successfully complete the game in arcade mode ten times to unlock Hillary Clinton.

Rumbleman:
Successfully complete the game in arcade mode with every character, including the hidden characters. Then complete the game in arcade mode one additional time, under the hard difficulty setting.