Instructions
Select "Z Battle Gate" from the main menu. Fight up to the seventh battle in the first chapter, "Saiyan Saga," if you are starting a new game. Play through the in-game "Tutorial" and "Practice" modes to learn how to effectively beat your opponents.
If you have loaded a previously saved game, you may revisit a scenario you have already completed on the "Battle Select" screen. Choose the battle between Tien and Chiaotzu to replay the battle.
Start the battle between Tien and Chiaotzu in front of a giant palace. Before you focus your attention on your foe, turn to the large building behind you and prepare to destroy it.
Press the "L2," "Triangle" and "Down" buttons to fire Tien's "Neo Tri-Beam" at the palace. After the building is reduced to rubble, grab the "Dragon Ball" that appears.
Fight and defeat Chiaotzu. Your opponent is nimble and excels at dodging your projectile attacks. Fly in at close range and throw melee strikes until you've won.
Choose "Tien vs. Chiaotzu" again from the "Battle Select" screen. When the battle begins, you may once again destroy the large temple to uncover another Dragon Ball. Repeat the battle, destroying the building each time, until you've retrieved seven of these mystical orbs.
Wish for a True World Tournament when the dragon, Shenron, appears. This option appears in a list of several items. By choosing the True World Tournament you can access the last Battle Gate in the "Z Battle Gate" mode.