Start the Prepare for the Attack of Saiyans! Parallel Quest, But Don’t Finish
Early on in Dragon Ball XenoVerse you will have the ability to participate in Parallel Quests. These are missions that give you a chance to unlock skills and clothing. The best part is that you have the option to replay them to your heart’s content. This one small fact is what makes this method so easy. The Parallel Quest “Prepare for the Attack of Saiyans!” is one of the first of these missions you will unlock and it isn’t a particularly difficult one.
What you want to do is be around level 10 and trigger this quest. Choose whoever you want to accompany you, it really doesn’t matter so you might as well go with whoever you want to stare at for the next few minutes. You’ll be put against Krillin, Yamcha, and Tien. what you need to do is use all that you’ve learned so far in Dragon Ball XenoVerse to defeat these three as fast as you can in order to trigger the gate to the next area.
When you finally trigger the gate you want to make sure NOT to go through it. Instead, look around and if luck is on your side there should be a time patroller standing under one of the awnings in the center of the stage. If not, then immediately pause the game and restart the quest. Once you get the hang of the combat it shouldn’t take much longer than one minute to defeat all three of your challengers so not too much time will be wasted between retries. If the time patroller does appear then it’s time for the next step.