Super Saiyan 6 is the sixth form of a Saiyan Warrior, achieving power level even beyond that of a Super Saiyan 5, this form is taken by those who can at least go Super Saiyan God, upon unleashing rage, the Saiyan’s true powers will be unleashed, thus transforming into this form.
SSJ Abbreviation
Dragon Ball is very much a Japanese franchise and the SSJ abbreviation comes from the Japanese term Sūpā Saiya-jin.
Vegito
Vegito should have the capacity to become an SSJ2 since a fused fighter does retain the capability of both fighters but he never used that against Buu.
While on the surface the two appear to be on equal footing, Gogeta is superior to Vegito for one very simple reason: Vegito has a power limit.
Gogito Fusion
Gogeta and Vegito fusing would create Gogito.
Vegito vs. Super Buu
In the anime, Vegito fights Super Buu before transforming into a Super Saiyan, but in the original manga, Vegito powers up to Super Saiyan before fighting Super Buu.
