This is how to get characters for free battle GOKU:BUY THE GAME KRILLIN:BUY THE GAME JACKIE CHUN:BEAT THE 21ST WORLD TORNAMENT MERCANARY TAO:BEAT HIM TWICE AT CORINS TOWER GRAMPA GOHAN:BEAT HIM ONE TIME TIEN:BEAT HIM ON 22ND WORLD TORNAMENT KING PICOLLO:BEAT THE GAME WITH BOTH KRILLIN AND GOKU CYBORG TAO:BEAT SURVIVAL MODE NOTE: ITS ONLY ON STORY MODE AND FREE BATTLE MODE. HOPE I HELPED
This works only for krillin.First charge up a full kamehameha.Then press L (For Solar Flare).But don't let go of the kamehameha! Then you'll have a third level kamehameha that is blue like a full kamehameha. You can keep doing the same thing with each level.