Complete the indicated task to unlock the corresponding Mentor.

Mentor	How to unlock
Android #18	Complete the Androids Saga. Level 34 required.
Beerus (Bills)	Complete Goku's Training. Level 70 required.
Freeza (Frieza)	Complete the Frieza Saga and complete Ginyu's training. Level 20 required.
Ginyu	Complete the first half of the Freeza Saga. Level 15 required.
Gohan & Videl	Complete the Buu Saga. Level 40 required.
Gotenks	Complete the Buu Saga. Level 40 required.
Kuririn (Krillin)	Complete the first half of the Saiyan Saga.
Mr. Satan (Hercule)	Complete the first half of the Androids Saga (Cell Saga).
Perfect Cell	Complete the first half of the Androids Saga (Cell Saga). Level 30 required.
Piccolo	Complete the first half of the Saiyan Saga. Level 5 required.
Son Goku	Complete the Démigra Saga. Level 70 required.
Vegeta	Complete the Saiyan Saga. Level 8 required.