Hidden Images | Updated 18 Jun |
| Place the game disc in a PC compatible CD-ROM drive to find twenty hidden images in the "Extra" directory. |
Cheap Training Equipment | Updated 18 Jun |
| Select the "Train Boxer" option in championship mode. Then, go to "Rumble Aerobics Training", press Left and immediately press A. If done correctly, you will have just purchased the $25,000 vitamin bottle for $500. You can do this with any of the training equipment, however the vitamin bottle will save the most money. |
Full Pause Screen | Updated 18 Jun |
Pause the game and press: X + Y. |
Fight In Outdoor Ring | Updated 18 Jun |
| Enter "Arcade Mode" from the main menu and select two player mode. Then at the character selection screen, hold X + L Trigger + R Trigger while selecting a boxer. |
Fight In Two Tier Arena | Updated 18 Jun |
| Enter "Arcade Mode" from the main menu and select two player mode. Then at the character selection screen, hold L Trigger while selecting a boxer. |
Fight In Championship Arena | Updated 18 Jun |
| Enter "Arcade Mode" from the main menu and select two player mode. Then at the character selection screen, hold R Trigger while selecting a boxer. |
Fight In Gym Ring | Updated 18 Jun |
| Enter "Arcade Mode" from the main menu and select two player mode. Then at the character selection screen, hold L Trigger + R Trigger while selecting a boxer. |
Restore Energy | Updated 18 Jun |
Knock your opponent down, then: Sweep the Analog-stick in a Full-Circle or repeatedly press L Trigger + R Trigger while they are stunned to restore some of your boxer's energy. |
Taunts | Updated 18 Jun |
During a match: Hold X + A or Y + B To taunt your opponent. |
Leprechaun Cornerman | Updated 18 Jun |
At the character selection screen: Hold X and press L Trigger + R Trigger. |
Alternate Cornerman | Updated 18 Jun |
At the character selection screen: Hold X and press Up, Right, Down, or Left. |
Alternate Costumes | Updated 18 Jun |
At the character selection screen: Press X + Y To alternate your character's costume and introduction (in arcade mode) |
Alternate Backgrounds | Updated 18 Jun |
Set the system date to October 31 to place skeletons in the crowd. Set the system date to December 25 to place Christmas trees in the prize fight arena. |
Champ Class | Updated 18 Jun |
Select "Championship Mode" from the main menu. Then, choose "New Game" and enter "POD 5!" as a gym name to unlock all class champ boxers in championship mode. Note: This also unlocks Damien Black in arcade mode. |
Gold Class | Updated 18 Jun |
Select "Championship Mode" from the main menu. Then, choose "New Game" and enter "MOSMA!" as a gym name to unlock all class gold boxers in championship mode. Note: This also unlocks Nat Daddy in arcade mode. |
Silver Class | Updated 18 Jun |
Select "Championship Mode" from the main menu. Then, choose "New Game" and enter "RUMBLE BUMBLE" as a gym name to unlock all class silver boxers in championship mode. Note: This also unlocks Bruce Blade in arcade mode. |
Bronze Class | Updated 18 Jun |
Select "Championship Mode" from the main menu. Then, choose "New Game" and enter "RUMBLE POWER" as a gym name to unlock all class bronze boxers in championship mode. Note: This also unlocks Kemo Claw in arcade mode. |