101:
Defeat 101 in championship mode.
Behemoth:
Defeat Behemoth in championship mode.
Cassius Ii:
Defeat Cassius II in championship mode.
Chaos 2:
Defeat Chaos 2 in championship mode.
Hypno-disc:
Defeat Hypno-Disc in championship mode.
Mortis:
Defeat Mortis in championship mode.
Onslaught:
Defeat Onslaught in championship mode.
Panic Attack:
Defeat Panic Attack in championship mode.
Play As House Robots:
To unlock the House Robots in the robot select, all you have to do is complete the mayhem mode in the games section.
HINT-get away from other robots and let them destroy each other rather than you.
HINT2-the only way to destroy the house robots is by pushing them in the arena pit.
Plunderbird 4:
Defeat Plunderbird 4 in championship mode.
Pussycat:
Defeat Pussycat in championship mode.
Razer:
Defeat Razer in championship mode.
Robot Mayhem Mode:
Wait for other Robots to appear so they can fight each other. Push disabled Robots into the pit.
Stinger:
Defeat Stinger in championship mode.
Terrorhurtz:
Defeat Terrorhurtz in championship mode.
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- ALL GBA cheats
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