Yes you can't get any characters using passwords from Dragon ball budokai 3, just upgrade the characters that are in tenkaichi. You can't get Uub, or Omega shenron rumors can be disapointing because no one actually had Omega shenron while saying you could get him but anyways grats to you Dee on beating all 100 battles (by the way Talksick this is zack_attack, I found my old account from years ago lol)
OH SNAP I WOULD HAD NEVER GUESSED!