Parallel Quest - collect the dragon balls | Introduction DB: Xenoverse Guide

Bring every ball to the ship

While completing Parallel Quests, you'll see objective of collecting Dragon Balls. You need to collect three to succeed. In additional requirements, the number is raised to six or seven. You don't have to fight any enemies (although defeating them is one of the secret requirements and it will grant you a better rank). Just collect the Dragon Balls and bring them to the Time Machine, which is always in the center of the location.

The balls can be on a various height, inside many objects

During these quests, you'll get a special radar that shows the Time Machine as a flag and Dragon Balls as dots. You can carry two balls at a time. If you get attacked, you'll drop them and you'll have to pick them up again. If an enemy picks them up, he can't do anything, but he will protect them. Dragon Balls in these quests are not related to the ones that you need to collect to summon the dragon.