Successfully complete novice and adept modes in tournament and save the game to a memory card. Get a different memory card with no file from the game. Complete story mode and go to Mr. Popo's shop. Put the memory cards in slots one and two. Trade the Dragon Ball from the new saved file on memory card two to Memory Card one. Remove both memory cards. Put the memory card that was in slot two into slot one. You will now have all the characters from the saved game file on memory card one.
Defeat Android 16 in Dragon World with Goku.
Defeat Android 17 in Dragon World with Piccolo.
Defeat Android 18 in Dragon World with Krillen.
Defeat Android 20 in Dragon World with Goku.
Defeat Cell in Dragon World with Goku.
Get over 100 Kili in Babidi's Ship.
Defeat Frieza in Dragon World with Goku.
Defeat Vegeta on Namek in Dragon World with Kid Trunks.
Defeat Ginyu on Namek in Dragon World with Vegeta.
Get both Hercule's and Goku's Breakthrough Capsules.
You will automatically get his capsule during Dragon mode when you are in the Hyperbolic Time Chamber.
Defeat Fat Buu in Dragon World with Saiyaman.
Get this capsule after you have gathered all seven Dragon Balls. Summon Shenron and acquire the capsule.
Get over 3,600 Kili in Babidi's Ship.
Get over 1,200 Kili in Babidi's Ship.
Defeat Majin Vegeta the first time you fight him with Goku.
Defeat Nappa in Dragon World with Vegeta. This can only be done when you unlock Vegeta and start Dragon mode again.
To get the Potara Capsule for Vegeta, you must wish for it from the Eternal Dragon Shenron at the end or Dragon World.
Defeat Raditz in Dragon World with Goku.
Defeat Recoome in Dragon World with Goku.
Defeat Cell in Dragon World with Adult Gohan the first time you see him.
Get over 2,400 Kili in Babidi's Ship.
Defeat Supreme Kai in Dragon World with Goku.
Use a memory card with a saved game file from Dragon Ball Z: Budokai. Alternately, in Dragon World, defeat Cell for the last time on Supreme Kai's planet with Adult Gohan.
Get both Tien and Yamcha's Breakthrough Capsules. A capsule will be given you that explains it.
Defeat Vegeta on Namek in Dragon World with Goku.
In the city, when Supreme Kai tells you about the Potara earrings, go to him to get them. When Vegeta comes, give him the other earring.
Defeat Super Buu (as Gohan absorbed) in Dragon World with Hercule.
When you get all the Golden Capsule,s go to the place where you fight with Cell. Go left and there should be a tunnel. Go down it and take the Capsule. It has fusion earrings in it. Use it and you should have Vogeto.
Defeat Nappa in Dragon World with Tien.
Unlock sixteen playable characters. The Adept capsule will appear in the capsule shop.
Unlock all twenty nine characters. The Advanced capsule will appear in the capsule shop.
Successfully complete Dragon World and have all seven Dragonballs. After the credits, the Dragonballs will glow and Shenron will be summoned. The first option is "Babidi's Ship".
Defeat Majin Vegeta the first time you fight him with Goku. Alternately, defeat Majin Frieza or Majin Cell in the same manner.
Get over 10,000 Kili in Babidi's Ship.
Buy all red capsules that you can get at the beginning. Alternately, have a saved game from the original Dragon Ball Z: Budokai on your memory card.
Buy all the red capsules that you can get with the Silver Card.
Buy all the red capsules that you can get with the Gold Card.
To get Bulma's costumes, get all the Dragon Balls. Then, summon the dragon. If you are lucky, you can get Bulma's costumes. Bulma's costume will change the way that Bulma appears in the capsule shop.
To unlock the characters easily, try to complete the Dragon World (the real game). About every time you defeat a character, you will unlock the person that you were battling against.
Get a Viral Heart Disease Skill and put it on for support. Then, get a Vaccine to not make your Power decrease, but your opponent's will. Just block until their health is in the orange. You should now be able to defeat them. Also when you initiate Burst mode in battle, instead of just randomly pressing buttons (as the game suggests), use the palm of your hand to rotate both Analog-sticks either clockwise or counter-clockwise, depending on which is more comfortable for you. Note: For optimal performance, use your dominant hand (if you are right-handed, use your right hand; and if left-handed, use your left).
To pick up a Dragon Ball after it is in the center of the Dragon Ball Radar, just select the character that is on top of the Dragon Ball and press B.
Equip Goten or Kid Trunks with the Fusion. While you are fighting, press P + K + G (Y + B + A). You will have all of their moves as if you chose that character at the start. Note: No transformation is possible.
Play Stage 3 of Babidi's Spaceship with Yamcha only using Wolf Fang Fist to unlock Dabura, Majin, Super and Kid Buu along with some of their moves much faster than if someone else was used.
When charging up for a special, hold A to charge faster. This the only way to get Majin Vegeta's Final Explosion move without getting destroyed.
Turn you controller vertically and place your hand over both Analog-sticks. Rotate them both with your hand.
After the stage where Vegeta get s taken over by Babidi, Freeza and Cell come back to life. This happens in Dragon Ball GT.
When fighting Kid Buu in Dragon World mode, when he does the vanishing drop technique it is exactly the same as the Missing Screw move that Zarbon used in the original Dragon Ball Z: Budokai.
Play as Goten or Kid Trunks. Have them be Super Saiyan and have two capsules of Kamehameha or Buster Cannon. Also get a quick fire type move such as Continuous Kamehameha (if Trunks has one). This works well because if you are tall (like Goku), you will kick over Buu's head.
- Goku: Super Spirit Bomb
- Teen Gohan: Fatherson Kamehameha
- Mystic Gohan: Super Dragon Fist
- Goten: Continuous Kamehameha
- Kid Trunks: Energy Burst
- Teen Trunks: Burning Slash
- Raditz: Weekly Special
- Vegeta: Big Bang Attack
- Nappa: Breakstorm
- Krillin: Fierce Destructo Disc
- Tien: Volleyball Fist
- Yamacha: Wolf Fang Blast
- Great Saiyaman: Justice Carnival
- Hercule: Present for You
- Videl: Videls Close Call
- Piccolo: Special Beam Cannon
- Supreme Kai: Majestic Rush
- Frieza: Death Ball
- Ginyu: Body Change
- Recoome: Recoome Bomber
- Dabura: Hell Blade Rush
- Majin Buu: Angry Explosion
- Super Buu: Absorption
- Kid Buu: Warp Kamehameha
- Android 16: Hell Flash
- Android 17: Power Falling Star
- Android 18: Power Falling Star
- Dr. Gero: Life Drain
- Cell: Spirit Bomb
- Vegito: Spirit Sword
- Gokule: Ultra Spirit Bomb
- Gotenks: Galactica Donuts and Super Kamikaze Ghost Attack
- Tiencha: Wolf Fang Volleyball Fist
- Kibitoshin: Majestic Rush
- Teen Gohan: Fatherson Kamehameha