Budokai Team Earth 30
You unlocked Great Saiyaman, Trunks, Yamcha, and Hercule in Dragon Ball Z: Budokai
Great Saiyaman: Beat the Advanced World Tournament.
Hercule: Beat the Adept World Tournament.
Trunks: Unlocked during story mode.
Yamcha: Unlocked during story mode
Budokai Team Frieza 30
You unlocked Zarbon and Dodoria in Dragon Ball Z: Budokai
Zarbon: Unlocked during story mode .
Dodoria: Unlocked during story mode.
Budokai Team Android 30
You unlocked #16, #18, and #19 in Dragon Ball Z: Budokai
Android 16: Unlocked during story mode.
Android 18: Unlocked during story mode.
Android 19: Unlocked during story mode.
Budokai Legend of Hercule 30
You unlocked Legend of Hercule in Dragon Ball Z: Budokai
You will be able to buy this after you've purchased the Adept Tournament in the Capsule Shop
Budokai 3 Goku's Family 35
You unlocked Goku (Kid), Gohan (Teen, Adolescent, Saiyaman), and Goten in Dragon Ball Z: Budokai 3
Kid Goku: In Goku's DU. After you've killed Raditz, but before you'll kill Nappa, go to Grandpa Gohan's house. it's located in the east at the shores.
Teen Gohan: Finish Kid Gohan's DU.
Adult Gohan: Finish Teen Gohan's DU.
Great Saiyama: Finish Adult Gohan's DU.
Goten: After the first fight in Adult Gohan's DU.
Budokai 3 Vegeta's Family 35
You unlocked Vegeta and Trunks (Future and Kid) in Dragon Ball Z: Budokai 3
Vegeta: Already Unlocked.
Kid Trunks: Defeat Buu during Vegeta's DU.
Future Trunks: Finish Vegeta's DU.
Budokai 3 Team Earthlings 35
You unlocked Hercule, Videl, and Uub in Dragon Ball Z: Budokai 3
Hercule: During Piccolo's second playthrough of DU, instead of fighting Buu, go to the Desert, near Baba's place you'lll find Hercule. Next, go to Central City and talk to Videl. When the conversation is finished, you'll have unlocked Hercule.
Videl: During Gohan's DU, search the lower right fields. (Near the World Tournament).
Uub: During Goku's second playthrough of DU, finish Kid Buu with a Spirit Bomb while in Normal State. If you did it correctly, the story will continue and you'll unlock Uub.
Budokai 3 Team Frieza 35
You unlocked Ginyu, Recoome, Frieza, and Saibamen in Dragon Ball Z: Budokai 3
Ginyu: Defeat Ginyu in Goku's DU.
Recoome: Defeat Recoome in Goku's DU.
Frieza: Defeat Frieza in Goku's DU.
Saibamen: Unlocked in the Dragon Arena, Nappa must break in. You will need a level 10-20 character and battle opponents that are at least twice your level. I it did against a lvl 32 Videl with a level 15 Teen Gohan.
Budokai 3 Team Android 35
You unlocked #16, #17, #18, Dr. Gero, Cell, and Cell Jr. in Dragon Ball Z: Budokai 3
Android 16: On Krillen's DU, after fighting Frieza the first time two markers will appear. Go to the right one to talk to the Ginyu frog. Then continue the story and you will get to the Android saga. Search the islands east of the World Marial Arts Tournament and you will find a broken 16. Take him to West City and you will unlock him.
Android 17: Defeat Android 17 in Piccolo's DU.
Android 18: Finish Krillen's DU.
Dr. Gero: Defeat Dr. Gero in Yamcha's DU.
Cell: Defeat Cell in Teen Gohans DU.
Cell Jr: Unlocked in Dragon Arena, Piccolo must break in. You will need a 30+ character.
I personally got it with a lvl 37 Goku against a lvl 66 Tien.
Budokai 3 Buu Saga 35
You unlocked Buu (Majin, Super, and Kid), Dabura, and Supreme Kai in Dragon Ball Z: Budokai 3
Majin Buu: Defeat Majin Buu in Goku's DU.
Super Buu: Defeat Super buu in Goku's DU.
Kid Buu: Defeat Kid Buu in Goku's DU.
Dabura: Defeat Dabura in Adult Gohan's DU.
Supreme Kai: In Adult Gohan's DU, you have to be in the second DU run and at the beginning when the red dot says Babidis Spaceship you have to go the mountains to talk to vegeta. Right before the final battle, search around in the 'Plain' area' to unlock Supreme Kai.
Budokai 3 Fierce Warriors 35
You unlocked Cooler, Bardock, Broly, and Omega Shenron in Dragon Ball Z: Budokai 3
Bardock: In Goku's second playthrough of DU, check the Saiyan space pod in north-eastern area to unlock Bardock.
Cooler: Must finish Goku and Vegeta atleast once. In Goku's second playthrough of DU, defeat Frieza. 3 dots will appear on the map, take the bottom one to fight SSJ Vegeta, after you've defeated him, Cooler will appear. Defeat him to unlock him.
1) Finish Goku's DU story mode.
2) Start Goku's DU again and get to the Majin Saga.
3) Play until Gohan is absorbed by Super Buu and you're looking for someone to fuse with.
4) Find the ??? mark that starts the conversation with Hercule.
5) Talk to Hercule, then head towards the red dot on your map.
6) Don't battle Super Buu yet! Find the other ??? nearby and use it to talk to Tien.
7) Now search for the "Mountains" location.
8) If you've found the right area, you'll talk to Kabitoshin about how he's scared.
9) Now fight Super Buu. Make sure you kick his butt.
10) Now a new red dot will appear and Vegeta will hold off Buu so you can check it out.
11) The red dot is Broly. Defeat him to unlock him.
1) Be on Goku's second playthrough of DU.
2) Get Goku's SSJ4 capsule, it's on one of the islands near the World Tournament.
3) Follow the same steps as for unlocking Broly.
4) Once you defeated Broly, ignore the red dot on the map and go to West City to Bulma.
5) Go to the new red dot and defeat Gotenks (you unlock SSJ Gogeta along the way too)
6) Omega Shenron will now appear.
7) Defeat/rape Omega Shenron as SSJ4 Gogeta.
8) You just unlocked Omega Shenron.