Dragon Ball Z Budokai 3 - Platform: Gamecube

Cheats:
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All these must be done in Dragon mode.

Effect - Code
---------------------------
Adept World Tournament    - Unlock 16 Characters, then buy it from Bulma
Advanced World Tournament - Unlock all 29 Characters, then buy it from Bulma
Android 16                - Beat Android 16 with Goku.
Android 17                - Beat Android 17 with Piccolo.
Android 18                - Beat Android 18 with Krillen.
Android 20                - Beat Android 20 with Goku.
Babidi's Ship             - Collect All 7 Dragon Balls and Wish for it from Shenron.
Babidi's Spaceship        - Wish for it on the Dragonballs
Breakthroughs             - Wish for them with the Dragonballs
Bulma's costumes2/6       - Wish for them on the Dragonballs
Cell                      - Beat Cell with Goku.
City Street Stage         - Beat super Buu with gohan on stage 8 without being defeated
Dabura                    - Get 100 Kili on Babidi's Spaceship.
Frieza                    - Beat Frieza with Goku
Future Trunks             - Beat Vegeta on Namek with Kid Trunks.
Ginyu                     - Beat Ginyu on Namek with Vegeta.
Gokule(capsule)           - Get Goku and hercule's breakthrough
Gotenks(Capsule)          - Once enteared stage 7 it's yours
Hercule                   - Beat Fat Buu with Great Saiyaman stage 6.
Kabitoki(Capsule)         - Wish for it on the Dragonballs
Kabitoshin (Potara)       - Collect seven dragonballs and wish for the capsule from the Dragon.
Majin Vegeta              - Dragon World, Stage 5, defeat any Majin character to get the 
                            Capsule that allows you to get Majin Vegeta. (Dabura does not count.)
Nappa                     - Beat Nappa with Vegeta (can only be done when you unlock Vegeta and 
                            start Dragon mode again).
Raditz                    - Beat Raditz with Goku.
Recoome                   - Beat Recoome with Goku.
Saiyaman                  - Beat Cell with Gohan (adult) only.
Silver Membership Card    - Have a Budokai 1 save on your memory card when you start a New Game
SSJ2 Gohan (adult)        - Defeat Majin Vegeta before Majin Buu kills Babidi in Stage 6 (the 
                            area with the large ring)
Super Saiyan 2(Goku)      - Beat Cell on stage 4 with Goku
Super Saiyan 2(Vegeta)    - Beat Super Buu(Gohan) as Vegeto Stage 8
Super Saiyan 3(Goku)      - Beat Majin(Fat) Buu on stage 6 with Goku
Super Saiyan(Goku)        - Let Krillen die on Stage 3.
Supreme Kai               - Beat Supreme Kai with Goku.
Teen Gohan                - Beat Cell for the last time on Supreme Kai's planet with Adult Gohan.
Tiencha(Capsule)          - Get both Breakthoughs of Tien and Yamcha
Vegeta                    - Beat Vegeta with Goku on Namek.
Vegeto(Capsule/Goku)      - Get Goku to Surpreme Ki then to Vegeta Stage 8
Vegeto(Capsule/Vegeta)    - Wish for it on the Dragonballs
Videl                     - Beat Super Buu(Gohan) as Hercule Stage 8
Yamcha                    - Beat Nappa with Tien.

Unlock Kid Buu:
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Get 3600 kili in Babidi's Spaceship.

Unlock Majin Buu:
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Get 1200 kili in Babidi's Spaceship.

Unlock Super Buu:
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Get 2400 kili in Babidi's Spaceship.

Unlock Super Buu's Absorbtion Technique:
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Get 10,000 kili.