02: Saiyan Saga

Invasion of Earth! Saiyan Warrior Raditz

Win: Defeat Raditz

Lose: Player's HP is depleted

After defeating Raditz, you'll be back in Toki Toki City with Trunks. With the timeline corrected, you can now accept more quests to correct distorted timelines from Trunks. The shops are available now as well. Talk to Trunks to receive an Old Scouter. You can equip it from your Customize menu. The Time Patrol missions are the main quests while the Parallel Quests are the sidequests. Leave the place and explore Toki Toki City if you want.

For starters, go to the Time Machine Sector and start the first Parallel Quest to learn more about it. After completing that Parallel Quest, you can do things on your own pace. You can take on a new PQs if you want. You can complete PQ's until 03 (Saiyan Blood). After that, no new PQs will become available until you proceed with the story. When ready, talk to Trunks in the Time Nest.