Rocky Cheats - GameCube

Double punch damage
Hold [R] and press [Right], [Down], [Left], [Up], [Left], [L] at the main menu.

Double speed boxing
Hold [R] and press [Down], [Left], [Down], [Up], [Right], [L] at the main menu.

All default boxers and arenas
Hold [R] and press [Right], [Down], [Up], [Left], [Up], [L] at the main menu. Note: This does not unlock Mickey or the Rocky Statue. Alternately, hold [R] and press [Right], [Down], [Left], [Up], [Left], [L].

All default boxers, arenas, and Rocky Statue
Hold [R] and press [Right]x3, [Left], [Right], [L] at the main menu.

All default boxers, arenas, Rocky Statue, and Mickey
Hold [R] and press [Up], [Down]x2, [Left]x2, [L] at the main menu.

Full stats in tournament and exhibition modes
Hold [R] and press [Left], [Up]x2, [Down], [Right], [L] at the main menu.

Full stats in movie mode
Hold [R] and press [Right], [Down]x2, [Up], [Left], [L] at the main menu.

Silver class knockout tournament
Win the bronze class knockout tournament.

Gold class knockout tournament
Win the silver class knockout tournament.

Fight as Mickey Goldmill
Successfully complete movie mode under the Champ difficulty setting.

Rocky Statue
Successfully complete movie mode under the Contender difficulty setting.

Easy knock downs
In movie or any other mode, when the fighter approaches you at the start of the fight, hit him with your special power punch. When he comes to you again, hit him with another special power punch, then attack him with body shots. This will drop his strength and let you knock him down repeatedly, thus winning the fight.