Chi-Chi
Collect the seven Dragonballs from Dragon History gameplay by smashing breakable stuff. You can also collect them by winning tournaments.
Future Gohan
Collect the seven Dragonballs from Dragon History gameplay by smashing breakable stuff. You can also collect them by winning tournaments.
How to unlock data center fighters
Use some of the codes from the previous game (for EX:LEVEL 160 SS4 Goku unlocks Goku (GT))There are many different ones to choose from so print the list of the ones that you can find and see what you can get.
Pan
To get Pan go to dragon arena and fight until adult gohan interferes, win him and you will get Pan.
Potara Kabitoshin
First you need to unlock supreme kai in adult gohans DU. When doing Gohans DU for 3rd time and having already unlock supreme kai do not go to fight Dabura at the babidis spaceship, instead go north-east of the babidis spaceship to find a place called "mountains", Enter there and continue the DU as normal, then after beating majin vegeta go west to an island called
"Forest" if there do not says forest then beat broly and go there again, There should be Kabitoshin and he will give you the potara Kabitoshin capsule.
Sai Girl
Die twice with King Vegeta, then shoot five kai blasts and exit the battle to unlock Sai Girl.
Secret Stage
Have DBZ: Budokai Tenkaichi 2 or 1, go to the data center in Tenkaichi 3 and go to discs fusion. Take out the game and put Tenkaichi 2 or 1 in, then Android 19 will say wait. After that, put Tenkaichi 3 back in.
Super duper amazing owning spirit bomb
First, go to ultimate training, second, pick goku (mid), third, pick another random character, fourth, fight randomly, fifth, make goku (mid) do "give me energy!" 3 times, sixth, do spirit bomb and you will take off all of health!
Survival mode
Complete 30 missions in 100 mission mode.