Here are some cheats and tips for the game Ready 2 Rumble Boxing Round 2.
Champion costumes:
Beat the game in championship mode to unlock the champion
costumes.
Fat boxer:
Press Right, Right, Up, Down, Right, R, R, L at the character
selection screen.
Skinny boxer:
Press Right, Right, Up, Down, Right, R, L at the character
selection screen.
Zombie boxer:
Press Left, Up, Right, Down, R, R, L at the character selection
screen.
Huge gloves:
Press Left, Right, Up, Down, R, L at the character selection
screen.