A Mentor is a special NPC that offers 4 missions, rewarding the player with unique abilities or skills upon completion of each mission. A player may only have one active Mentor at any given time and can see their progress by opening the menu > play data > Master Info (page). On the Master Info page, each mentor has an icon, 4 bubbles to the left of the icon, and an empty gauge to the right of the icon. After completing any of the training missions the player will see the bubbles filled, bottom to top, with the missions' associated rank, and after completing Parallel Quests (PQ) / Story Missions the gauge will slowly fill.
Each ability or skill acquired is specific to that Mentor; an example being Special Beam Cannon, Piccolo's signature move, only obtainable from Piccolo when chosen as a mentor and after completing all of his training missions. After learning any signature move, the player has a chance of seeing a "Z" placed prominently upon their screen while using the move which incurs an additional damage bonus, but only if the move's master is the player's current active mentor. At the end of any PQ, the player will find their active mentor in front of the Leaderboard hub in the middle of Toki-Toki. Other mentors appear at random.
Xenoverse Mentors[]
You can increase friendship levels with mentors by performing Offline Parallel Quests with either 1 or both slots filled by their character (any version, including Dark/Villainous versions) as well as using their moves and talking to them after each successful mission. In Elder Kai's case, ally yourself with any female character (Videl, Pan, or any female custom character) during the mission to increase his friendship faster.

Goku[]
Conditions to Unlock: Complete the Démigra Saga, LVL. 70 required
Ability 1: Afterimage Strike (Other)
Ability 2: Spirit Bomb (Ki)
Ability 3: X10 Kamehameha (Ki)
Ultimate: Super Kamehameha (Ki)
Piccolo[]
Conditions to Unlock: Complete the first half of the Saiyan Saga, LVL. 5 required
Ability 1: Evil Explosion (Ki)
Ability 2: Super Explosive Wave (Evasive)
Ability 3: Light Grenade (Ki)
Ultimate: Special Beam Cannon (Ki)
Krillin[]
Conditions to Unlock: Complete the first half of the Saiyan Saga, LVL. 5 required
Ability 1: Orin Combo (Strike)
Ability 2: Destructo-Disc (Ki)
Ability 3: Spread Shot Retreat (Evasive)
Ultimate: Scatter Kamehameha (Ki)
Vegeta[]
Conditions to Unlock: Complete the Saiyan Saga, LVL. 8 required
Ability 1: Galick Gun (Ki)
Ability 2: Finish Breaker (Ki)
Ability 3: Shine Shot (Ki)
Ultimate: Final Flash (Ki)
Captain Ginyu[]
Conditions to Unlock: Complete the first half of the Frieza Saga, LVL. 15 required
Ability 1: Fighting Pose F (Reinforcement)
Ability 2: Fighting Pose A (Reinforcement)
Ability 3: Milky Cannon (Ki)
Ultimate: Body Change (Other)
Gohan and Videl[]
Conditions to Unlock: Complete the Buu Saga, LVL. 40 required
Ability 1: Eagle Kick (Strike)
Ability 2: Ki Blast Cannon (Ki)
Ability 3: Hawk Charge (Strike)
Ultimate: Justice Combination (Strike)
Gotenks[]
Conditions to Unlock: Complete the Buu Saga, LVL. 40 required
Ability 1: Galactic Donuts (Ki)
Ability 2: DIE DIE Missile Barrage (Ki)
Ability 3: Super Ghost Kamikaze Attack (Ki)
Ultimate: Super Ghost Kamikaze Attack (Ki)
Hercule[]
Conditions to Unlock: Complete the first half of the Cell Saga
Ability 1: Dynamite Kick (Strike)
Ability 2: Present For You (Other)
Ability 3: Rolling Hercule Punch (Strike)
Ultimate: The Savior Has Come (Other)
Cell (Perfect)[]
Conditions to Unlock: Complete the Cell Saga, LVL. 30 required
Ability 1: All Clear (Strike)
Ability 2: Gravity Impact (Ki)
Ability 3: Perfect Shot (Ki)
Ultimate: Perfect Kamehameha (Ki)
Frieza[]
Conditions to Unlock: Complete the Frieza Saga, complete Ginyu’s training, LVL. 20 required
Ability 1: Death Beam (Ki)
Ability 2: Death Crasher (Strike)
Ability 3: Emperor's Sign (Reinforcement)
Ultimate: Supernova (Ki)
Android 18[]
Conditions to Unlock: Complete the Android Saga, LVL. 34 required
Ability 1: Power Blitz (Ki)
Ability 2: Endless Shoot (Ki)
Ability 3: Deadly Dance (Strike)
Ultimate: Dual Destructo-Disc (Ki)
God of Destruction Beerus[]
Conditions to Unlock: Complete Goku’s training, LVL. 70 required
Ability 1: Headshot (Evasive)
Ability 2: God of Destruction's Anger (Ki)
Ultimate: Sphere of Destruction (Ki)
Tien[]
Conditions to Unlock: DLC 1
Ability 1: Volleyball Fist (Strike)
Ability 2: Dodon Ray (Ki)
Ability 3: Tri-Beam (Ki)
Ultimate: Neo Tri-Beam (Ki)
Yamcha[]
Conditions to Unlock: DLC 1
Ability 1: Ki Blast Thrust (Ki)
Ability 2: Fake Death (Strike)
Ability 3: Wolf Fang Fist (Strike)
Ultimate: Spirit Ball (Ki)
Pan[]
Conditions to Unlock: DLC 2
Ability 1: Prepare To Be Punished (Reinforcement)
Ability 2: Maiden Burst (Evasive)
Ability 3: Feint Shot (Ki)
Ultimate: Maiden Blast (Ki)
Elder Kai[]
Conditions to Unlock: Completed all Elder Kai's Training from 1-13 and have All classes from 1-5 with Z to unlock the 6 mission in Advance classes, level 80 required
Ultimate: Unlock Potential (Transformation)
Jaco[]
Conditions to Unlock: DLC 3
Ability 1: Elite Beam (Ki)
Ability 2: Hero's Pose (Reinforcement)
Ability 3: Elite Shooting (Ki)
Ultimate: Super Elite Combo
Xenoverse 2 Mentors[]
Krillin[]
Conditions to Unlock: Complete "Make Way, Rookie Time Patroller Here"
Ability 1: Rise to Action (Reinforcement)
Ability 2: Orin Combo (Strike)
Ability 3: Destructo Disc (Ki)
Ultimate: Scatter Kamehameha (Ki)
Piccolo[]
Conditions to Unlock: Complete Krillin's first lesson
Ability 1: Evil Explosion (Ki)
Ability 2: Super Explosive Wave (Evasive)
Ability 3: Light Grenade (Ki)
Ultimate: Special Beam Cannon (Ki)
Yamcha[]
Conditions to Unlock: Complete Krillin's first lesson
Ability 1: Fake Death (Strike)
Ability 2: Wolf Fang Fist (Strike)
Ability 3: Ki Blast Thrust (Ki)
Ultimate: Spirit Ball (Ki)
Tien[]
Conditions to Unlock: Complete Krillin's first lesson
Ability 1: Dodon Ray (Ki)
Ability 2: Volleyball Fist (Strike)
Ability 3: Tri-Beam (Ki)
Ultimate: Neo Tri-Beam (Ki)
Kid Gohan[]
Conditions to Unlock: Complete the Saiyan Saga, complete the Beginner Advancement Test
Ability 1: Evil Ray Strike (Strike)
Ability 2: Evil Rise Strike (Strike)
Ability 3: Masenko (Ki)
Ultimate: Explosive Assault (Ki)
Raditz[]
Conditions to Unlock: Complete the Saiyan Saga, complete the Beginner Advancement Test
Ability 1: Double Sunday (Ki)
Ability 2: Saturday Crash (Ki)
Ability 3: Shining Friday (Ki)
Ultimate: Weekend (Ki)
Nappa[]
Conditions to Unlock: Complete the Saiyan Saga, complete the Beginner Advancement Test
Ability 1: Bomber DX (Ki)
Ability 2: Arm Crash (Strike)
Ability 3: Genocide Shell (Ki)
Ultimate: Break Cannon (Ki)
Vegeta[]
Conditions to Unlock: Complete the Saiyan Saga, complete the Beginner Advancement Test
Ability 1: Galick Gun (Ki)
Ability 2: Finish Breaker (Ki)
Ability 3: Flash Strike (Ki)
Ultimate: Final Flash (Ki)
Dodoria[]
Conditions to Unlock: Complete the Frieza Saga, complete the Intermediate Advancement Test
Ability 1: Dodoria Beam (Ki)
Ability 2: Critical Upper (Strike)
Ability 3: Dodoria Headbutt (Strike)
Ultimate: Dodoria Launcher (Ki)
Zarbon[]
Conditions to Unlock: Complete the Frieza Saga, complete the Intermediate Advancement Test
Ability 1: Audacious Laugh (Reinforcement)
Ability 2: Gorgeous Shot (Ki)
Ability 3: Bloody Counter (Strike)
Ultimate: Elegant Blaster (Ki)
Captain Ginyu[]
Conditions to Unlock: Complete the Frieza Saga, complete the Intermediate Advancement Test
Ability 1: Fighting Pose F (Reinforcement)
Ability 2: Fighting Pose A (Reinforcement)
Ability 3: Milky Cannon (Ki)
Ultimate: Body Change (Other)
Frieza[]
Conditions to Unlock: Complete the Frieza Saga, complete the Intermediate Advancement Test
Ability 1: Death Beam (Ki)
Ability 2: Death Crasher (Strike)
Ability 3: Death Slicer (Ki)
Ultimate: Death Ball (Ki)
Lord Slug[]
Conditions to Unlock: Complete the Cell Saga, complete the Advanced Advancement Test
Ability 1: Evil Eyes (Ki)
Ability 2: Darkness Eye Beam (Ki)
Ability 3: Darkness Twin Star (Ki)
Ultimate: Darkness Rush Ranged/ Darkness Rush Melee (Strike)
Android 18[]
Conditions to Unlock: Complete the Cell Saga, complete the Advanced Advancement Test
Ability 1: Power Blitz (Ki)
Ability 2: Endless Shoot (Ki)
Ability 3: Deadly Dance (Strike)
Ultimate: Dual Destructo Disc (Ki)
Perfect Cell[]
Conditions to Unlock: Complete the Cell Saga, complete the Advanced Advancement Test
Ability 1: All Clear (Strike)
Ability 2: Gravity Impact (Ki)
Ability 3: Perfect Shot (Ki)
Ultimate: Perfect Kamehameha (Ki)
Majin Buu[]
Conditions to Unlock: Complete the Buu Saga, complete the Kai Advancement Test
Ability 1: Innocence Bullet (Ki)
Ability 2: Angry Hit (Strike)
Ability 3: Innocence Canon (Ki)
Ultimate: Innocence Breath (Ki)
Hercule[]
Conditions to Unlock: Complete the Buu Saga, complete the Kai Advancement Test, find Hercule by the shops and applaud in front of him
Ability 1: Dynamite Kick (Strike)
Ability 2: Present for You (Other)
Ability 3: Rolling Hercule Punch (Strike)
Ultimate: The Savior Has Come (Other)
Adult Gohan & Videl[]
Conditions to Unlock: Complete the Buu Saga, complete the Kai Advancement Test
Ability 1: Eagle Kick (Strike)
Ability 2: Justice Rush (Strike)
Ability 3: Hawk Charge (Strike)
Ultimate: Justice Combination (Strike)
Gotenks[]
Conditions to Unlock: Complete the Buu Saga, complete the Kai Advancement Test
Ability 1: Super Ghost Kamikaze Attack (Ki)
Ability 2: Galactic Donuts (Ki)
Ability 3: DIE DIE Missile Barrage (Ki)
Ultimate: Super Ghost Kamikaze Attack (Ki)
Turles[]
Conditions to Unlock: Complete the Buu Saga, complete the Kai Advancement Test
Ability 1: Sudden Storm (Ki)
Ability 2: Kill Driver (Ki)
Ability 3: Fruit of the Tree of Might (Strike/Reinforcement)
Ultimate: Meteor Burst (Ki)
Broly[]
Conditions to Unlock: Must complete the Buu Saga, The God of Destruction Quest(3), and the God Advancement Test. Then, defeat him near the parallel quest area
Ability 1: Blaster Shell
Ability 2: Blaster Meteor
Ability 3: Gigantic Omega
Ability 4: Gigantic Meteor
God of Destruction Beerus[]
Conditions to unlock: Complete the Buu Saga, complete the God Advancement Test
Ability 1: God of Destruction's Anger (Ki)
Ability 2: God of Destruction's Rampage (Strike)
Ability 3: God of Destruction's Wrath (Ki)
Ultimate: Sphere of Destruction (Ki)
Pan[]
Conditions to Unlock: Complete the Story Mode, complete the God Advancement Test
Ability 1: Dancing Parapara (Other)
Ability 2: Prepare to Be Punished (Reinforcement)
Ability 3: Feint Shot (Ki)
Ultimate: Maiden Blast (Ki)
Jaco[]
Conditons to Unlock: Complete the Story Mode, complete the God Advancement Test
Ability 1: Hero Pose (Reinforcement)
Ability 2: Elite Beam (Ki)
Ability 3: Elite Shooting (Ki)
Ultimate: Super Elite Combo (Strike)
Goku[]
Conditions to Unlock: Complete the Story Mode, complete the God Advancement Test
Ability 1: Spirit Bomb (Ki)
Ability 2: Instant Transmission (Other)
Ability 3: X10 Kamehameha (Ki)
Ultimate: Super Kamehameha (Ki)
Whis[]
Conditions to Unlock: Download the Mentors DLC Pack, complete the Story Mode, complete the God Advancement Test
Ability 1: Finishing Blow (Strike)
Ability 2: Prelude to Destruction (Ki)
Ability 3: Strike of Revelation (Strike)
Ultimate: Symphonic Destruction (Ki)
Cooler[]
Conditions to Unlock: Download the Mentors DLC Pack, complete the Frieza Saga, Complete Beginner's Advancement Test
Ability 1: Feint Crash (Strike)
Ability 2: Shadow Crusher (Strike)
Ability 3: Fake Blast (Evasive)
Ultimate: Supernova Cooler (Ki)
Android 16[]
Conditions to Unlock: Download the Mentors DLC Pack, complete the Cell Saga, complete Intermediate Advancement Test
Ability 1: Eye Beam (Ki)
Ability 2: Rocket Tackle (Strike)
Ability 3: Android Rush (Strike)
Ultimate: Hell's Flash (Ki)
Future Gohan[]
Conditions to Unlock: Download the Mentors DLC Pack, complete the Unknown History Saga, complete Intermediate Advancement Test
Ability 1: Super Explosive Wave (Ki)
Ability 2: Sonic Rush (Strike)
Ability 3: Energy Dome (Evasive)
Ultimate: One-Handed Kamehameha mk.II (Ki)
Bardock[]
Conditions to Unlock: Download the Mentors DLC Pack, complete the Unknown History Saga, complete God Advancement Test
Ability 1: Tyrant Lancer (Ki)
Ability 2: Rebellion Spear (Strike)
Ability 3: Riot Javelin (Ki)
Ultimate: Brave Heat (Ki)
Hit[]
Conditions to Unlock: Download DLC Pack 1, complete the Story Mode, complete God Advancement Test
Ability 1: Time Skip/Flash Skewer (Strike)
Ability 2: Time Skip/Back Breaker (Strike)
Ability 3: Time Skip/Jump Spike (Strike)
Ability 4: Time Skip/Tremor Pulse (Evasive)
Bojack[]
Conditons to Unlock: Download DLC Pack 3, complete the Story Mode, collect all of Bido and Bujin's clothing items
Ability 1: Reverse Launcher (Ki)
Ability 2: Trap Shooter (Ki)
Ability 3: Psycho Barrier (Ki)
Ultimate: Grand Smasher (Ki)
Zamasu[]
Conditions to Unlock: Download Extra Pack 1, complete the Story Mode, complete God Advancement Test
Z-Soul: "I'm thinking of becoming a GodTuber." - Gowasu (Temporarily increases all attacks and movement speed when guard is broken)
Ability 1: God Splitter (Ki)
Ability 2: Heavenly Arrow (Ki)
Ultimate: Instant Severance (Strike)
Additional Information[]
Toki Toki City appears to spawn zero to 3 mentor NPCs at a time until the player chooses one. If the desired mentor is unlocked, but doesn't appear, Toki Toki City can be reset by entering character select for an Offline Parallel Quest or Offline Battle, then cancelling the quest.
A mentor's gauge fills based on a few things:
1) Using moves they teach you
2) Doing PQ's with them (recommended to fill both com spots with your mentor)
3) Getting high ranks on PQ's and/or story missions
I recommend doing the first story mission repeatedly with at least a lvl 30 character or higher to quickly get Z ranks. (Skip the cut scenes to save time, using this your mentor's gauge will max in 1 hour, 2 hours at most.)