Special charactersPlatform: GameBoy Advance
To play as a special character, go into single fight. Then , highlight Miagaru (his outfit will appear gray). Then, replace the opponent Miagaru with either Micky McFist, The Hammer, Tiny, Major Flag, or Knuckles Nadine. And fight. When it says "Retry", choose "No". After the fight, choose the opponent that Miagaru is replaced with. Here is the key:
Micky Mcfist: Joe Nitro
The Hammer: Psycho Tick
Tiny: Ice Berg
Major Flag: Sargent Drill
Knuckles Nadine: Violet Violet
There are two more special characters. Knuckles Nadine has a third form called "Wendy" (face her in survival mode) and Jackpot has an ultimate form, "Evil Jackpot" (the mid-Boss in survival mode).
Status Password Platform: GameBoy Advance
Amateur Series completed 90HG6738
Top Contender Series completed H7649DH5
Pro Am Series completed 2GG48HD9
Professional Series completed 8G3D97B7
World Title completed B3G58318
Survival Mode completed G51FF888