Dragon Ball Z Budokai 2

Unlock 16 Characters, then buy the Adept World Tournament from Bulma.

You can get it in 2 ways:

1: Wish for it when summoned Shenron.

2: Hold L2 and enter and exit skill shop ignoring Bulma when she is talking.

Wish for Breakthroughs on the Dragonballs.

Beat super Buu with Gohan on stage 8 without being defeated to unlock the City Street Stage.

Get 100 Kili on Babidi's Spaceship to unlock Dabura.

To win easilly on tournaments or any fight, do the following: first buy the capsules, "viral heart disease" and the "vaccine" capsules. Then go to the character edits and put "viral heart disease" and the "vaccine" on the player you want to win with. Then you can wait till their health decreases and then just finish them with an ultimate move (this works with everyone, so if u want to win in the tournaments, you can do this and kill the opponent when he has little health).

Note: This thing can only work on Frieza. Go to Edit Skills from the main menu. Go to Edit Capsules and choose Frieza. Put the skills SENZU BEAN and FRIEZA'S SPACE SHIP in his custom tray. Now fight in any mode (duel, world tournament, dragon world). If you die you will get back up and have 3 more bars of health gauge. That makes 6 bars of life for you. If you die again, Frieza's Space Ship will appear and heal you. Now you will again get back up and again have 3 more bars of health gauge. That makes 9 bars of life for you. Frieza will also transform into Mecha Frieza. This is a much stronger transformation than Final from. You will be invincible! Note: If you have entered the skill BREAKTHROUGH in Frieza's custom tray, then the SENZU BEAN and FRIEZA'S SPACE SHIP skills won't come into effect. They will only work separately.

With a memory card inserted (to save progress), enter an item shop. Hold L1 + L2 and leave. Repeat the process for more stuff.

Note: They mess up on this cheat it not just L1 and L2. You have to hold R1,R2,L1,L2 when you leave the skill shop. You also have to set a skill or buy a skill for it to save. Thanks to James Arnold for this note.

If you are fighting as either Goten or Trunks in a battle with the skill FUSION in their custom trays, here's something to laugh about. While fighting, do fusion (P,P,K,K,E). Then you will have to press a combination of buttons to perform the fusion dance. If you press them correctly in the right order, then the fusion will be succesful and Gotenks will be born. But if you want to have some fun with it, then do this. Perform the fusion technique (P,P,K,K,E). Then when you have to press the other combination of buttons, do them wrong. If you press the wrong buttons, then Gotenks will be really skinny and look funny. If you miss the last few buttons then Gotenks will be fat and tired and will not be able to use any moves.

Nappa: Beat him with Vegeta in Dragon World
Raditz: Beat him with Goku in Dragon World
Recoome: Beat him with Goku in Dragon World
Captain Ginyu: Beat him with Vegeta in Dragon World
Frieza: Beat him with Goku in Dragon World
Android 20:Beat him with Goku in Dragon World
Android 18: Beat her with Krillin in Dragon World
Android 17: Beat him with Piccolo in Dragon Waorld
Android 16: Beat him with Goku in Dragon World
Cell: Beat him with Goku in Dragon World
Great Saiyaman: Beat Cell with Gohan in Dragon World
Hercule: Beat Majin Buu (fat) with Great Saiyaman
Videl: Beat Super Buu (with Gohan absorbed) with Hercule
Future Trunks: Beat Vegeta on Namek with Kid Trunks
All the Buus: Get all of the dragonballs in dragon world and wish for Babidi's spaceship. Then do any of the stages in Babidi's ship to gain kili. If you have enough kili you can unlock the Buus automatically (a capsule would show up when the kili is being collected at the end of each stage).