Dragon Ball: Xenoverse How To Unlock Super Saiyan 4 Goku and Collect Dragon Balls
We’ve seen gameplay footage for many characters, but for those who imported couldn’t exactly figure out how to unlock Super Saiyan 4 Goku. In order to unlock him, players will have to complete all of the Parallel Quests.
As for the Dragon Balls, they can be found by defeating the Patrol characters that appear in the Parallel Quests. They wont always give you a Dragon Ball so it may take a few battles with them.