"His mentors are his video game mascot to help train on how to use his powers." 

Mario

Luigi

Peach

Daisy

Rosalina

Yoshi

Samus Aran

Pit

Lady Palutena

Ash Ketchum

Pikachu

Kirby

Meta Knight

King Dedede

Link

Zelda

Sheik

Donkey Kong

Diddy Kong

Sonic the Hedgehog

Miles "Tails" Prower

Knuckles the Echidna

Shadow the Hedgehog

Silver the Hedgehog

Marth

Ike

Chrom

Robin (Male)

Roy

Corrin (Male)

Inkling Boy & Girl

Octoling Boy & Girl

Cap'n Cuttlefish

Squid Sisters

Off the Hook

Bayonetta

Simon Belmont

Richter Belmont

Ryu

Ken

Pac-Man

Mega Man

Dr. Light

Demitri Maximoff

Bomberman

Sir Arthur

Shovel Knight

Sora (Kingdom Hearts)

Crash Bandicoot

Aku Aku

Spyro

Rayman

Master Eon

Terry Bogard

Jin Kazama

Kasumi

Solid Snake

Lara Croft

Chris Redfield

Jill Valentine

Ryu Hayabusa

Lui Kang

Ragna the Bloodedge

Filia

Claptrap

Master Chief

Steve and Alex

Banjo-Kazooie

Yooka-Laylee

Shantae

Conker the Squirrel

Reiko Hinomoto

Ren Amamiya

Son Goku

Prince Vegeta

Jotaro Kujo

Cloud Strife

Naruto Uzumaki

Monkey D. Luffy

DC Justice League

DC Young Justice League

Marvel Avengers

Marvel X-Men

S.H.I.E.L.D.

Teen Titans

DC Superhero Girls

Lantern Corps

Gex Gecko

Doom Slayer

All ARMS Fighters

The Super Smash Bros.

Cuphead and Mugman

Steve and Alex (Minecraft)

Little Mac and Doc Louis

Captain Olimar and Louie

Alph, Brittany and Captain Charlie

Fox McCloud

Falco Lomardi

Yen Sid

John Wick

P.S. His harem is massive and I'm too lazy to do anything about it. Also the genderbent characters will be from an Alternative Universe as put the initials AU and the clone duplicates for anyone's OC's harem I'll put Initial C for Clone.