This is an alternative goku, who didn't hit his head, but that didn't change much in the timeline it's the same as the original until the moro saga, there goku ended up turning and changing his name to evil kakarot and mixing all his forms (Mui,SSGJ,SSG,SSJ1 2 and 3) and can still use kaioken.

He mixed his transformations and didn't add up so he's stronger than the EVOLVED SSGJ, but he's weaker than the MUI.

He destroyed all the planets in his dimension and not satisfied he went to the main dimension to end it all.

X2m

1.0: Add Evil Kakarot