So apparently those ssj2 gohan prototypes where from Demoniacal

Yamcha Dragon Ball+BreezeWiki

History Box (Vol.10): Dragon Ball Z - Son Gohan SSJ2 (Banpresto

Apparently there were hella centaurs practicing CJJ : r/bjj

Super Saiyan, Dragon Ball Wiki

Category: Vegeta

BBTS Sponsor News: Force Friday! Star Wars Episode VII, Bandai

Super Saiyan, Dragon Ball Wiki

Apparently there were hella centaurs practicing CJJ : r/bjj

Dragon Ball Z Movie Villains / Characters - TV Tropes

SDCC SSJ2 Gohan is coming for you Cell. by Johnny-E on DeviantArt