1. Complete the Story Mode:
Start by completing the main story mode in the game. As you progress through the story, you will unlock various characters, including those necessary for obtaining the Black Star Dragon Balls.
2. Start Dragon Universe Mode:
After finishing the story mode, access Dragon Universe Mode, a simulation-style mode where you can explore the Dragon Ball Z universe and complete various missions and challenges.
3. Unlock "Gathering the Black Star Dragon Balls":
In Dragon Universe Mode, you need to unlock a specific side quest called "Gathering the Black Star Dragon Balls." This mission involves collecting seven Black Star Dragon Balls scattered across the Dragon Universe.
4. Find Black Star Dragon Ball Locations:
To locate the Black Star Dragon Balls, pay attention to clues or hints given during the side quest. These clues often indicate specific areas or characters related to the Dragon Ball's location.
5. Battle for the Dragon Balls:
Once you find a Black Star Dragon Ball, you will usually need to engage in a battle to obtain it. These battles can be against specific characters or random enemies.
6. Collect All Seven Dragon Balls:
Continue playing Dragon Universe Mode and follow the clues to find all seven Black Star Dragon Balls. Collecting all the Dragon Balls will unlock a special cutscene and reward you with an achievement.
7. Summon Porunga:
After obtaining all seven Black Star Dragon Balls, go to Kami's Lookout in Dragon Universe Mode. Here, you can summon the Eternal Dragon Porunga, who can grant wishes.
8. Make Your Wishes:
You can use the Black Star Dragon Balls to make two wishes with Porunga. The wishes can range from unlocking new characters, items, or additional content within the game.
Remember, obtaining the Black Star Dragon Balls requires patience and thorough exploration of the Dragon Universe. Good luck on your quest for the ultimate Dragon Ball rewards in Dragon Ball Z: Budokai Tenkaichi 3!