Dragon Ball Z: Budokai Tenkaichi 2 Cheats for GameCube

To get easy dragonballs you got to go to the match in which you fight the guy with the third eye,and blow up the building each time there will a dragonball there.

Successfully complete the following tasks to unlock the corresponding effect in the game.
Unlock Yamcha:
Beat Nappa with Tien.
Unlock Cell:
Beat Cell with Goku.
Unlock Supreme Kai:
Beat Supreme Kai with Goku.
Unlock Recoome:
Beat Recoome with Goku.
Unlock Frieza:
Beat Frieza with Goku
Unlock Android 16:
Beat Android 16 with Goku.
Unlock Android 17:
Beat Android 17 with Piccolo.
Unlock Android 18:
Beat Android 18 with Krillen.
Unlock Android 20:
Beat Android 20 with Goku.
Unlock Vegeta:
Beat Vegeta with Goku on Namek.
Unlock Adept World Tournament:
Unlock 16 Characters and then buy it from Bulma.
Unlock Advanced World Tournament:
Unlock ALL 29 Characters and then buy it from Bulma.
Unlock Cell Games Rules:
Come in 1st in the World Tournament: Advanced Mode.
Unlock Babidi's Ship:
Collect ALL 7 Dragon Balls and Wish for it from Shenron.
Unlock Babidi's Spaceship:
Wish for it on the Dragonballs.
Unlock Breakthroughs:
Wish for them with the Dragonballs.
Unlock Bulma's costumes 2-6:
Wish for them on the Dragonballs.
Unlock Dabura:
Get 100 Kili on Babidi's Spaceship.
Unlock Future Trunks:
Beat Vegeta on Namek with Kid Trunks.
Unlock Ginyu:
Beat Ginyu on Namek with Vegeta.
Unlock Gokule(Capsule):
Get Goku and hercule's breakthrough.
Unlock Gotenks(Capsule):
You will receive it when you reach stage 7.
Unlock Kabitoki (Capsule):
Wish for it on the Dragonballs.
Unlock Saiyaman:
Beat Cell with Gohan (Adult) only.
Unlock Vegeto (Capsule/Vegeta):
Wish for it on the Dragonballs.
Unlock Super Saiyan (Goku):
Let Krillen die on Stage 3.
Unlock Super Saiyan 2 (Goku):
Beat Cell on stage 4 with Goku.
Unlock Tiencha(Capsule):
Get both Breakthoughs of Tien and Yamcha.
Unlock Teen Gohan:
Beat Cell for the last time on Supreme Kai's planet with Adult Gohan.
Unlock Kabitoshin (Potara):
Collect 7 Dragonballs and wish for the capsule from the Dragon.
Unlock Silver Membership Card:
When you start a new game have a Budokai 1 'Save' on your Memory Card.
Unlock SSJ2 Gohan (Adult):
At the area with the large ring in Stage 6 defeat Majin Vegeta before Majin Buu kills Babidi.
Unlock Nappa:
Beat Nappa with Vegeta (you must have Vegeta unlocked and start Dragon mode again).
Unlock Majin:
On Stage 5 in Vegeta Dragon World defeat any Majin character except Dabura to get the Capsule that allows you to get Majin Vegeta.
Unlock Super Saiyan 3 (Goku):
With Goku beat Majin (Fat) Buu on stage 6.
Unlock Hercule:
With Great Saiyaman beat Fat Buu on stage 6.
Unlock Videl:
Beat Super Buu (Gohan) as Hercule Stage 8.
Unlock Super Saiyan 2 (Vegeta):
Beat Super Buu (Gohan) as Vegeto Stage 8.
Unlock Vegeto (Capsule/Goku):
Get Goku to Surpreme Ki then to Vegeta Stage 8.
Unlock City Street Stage:
On stage 8 beat super Buu with gohan without being defeated.

When your at the main menu do C-stick left, right, down, up. If done corectly you'll get a dragon ball and some other items