Falls in line with the recent alternate timeline vegeta I made. See inside for concept ssjg is small on purpose
This is actually not Goku, it's an android by the red ribbon army after finding the corpse of Goku after being killed by a bio-weapon. Goku later got the meta-cooler treatment, except this time it's just a soulless body. It's really a nanomachine in the head designed to accomplish a task. Vegeta, although, doesn't like the methods this android uses... Thus the confrontation Vegeta decided to do upon learning that "Kakarot" was about to destroy Central City. After a bit of arguing, they fight. After fighting, Double Galick Cannon part 2.