Summarize Everything, Get To The Point, Exactly The Point In A Literal Sense: Goku starts glowing a yellow aura around him and he yells, when at high pitched, he finally turned into a Super Saiyan. Goku charges right to saitama and misses. Saitama then does air hops to get far but goku was flying and easily catching up. Goku swings so many times and saitama dodges everything and they kept going all through the air. Goku then finally catches saitama and punches him multiple times but when he was done, saitama vanished. Goku was chasing saitama's after image this whole time and he turns around to look for the actual one but it was too late, saitama punched him in the face and sent him crashing down to the ground and out of his form.
Goku transforms into a Super Saiyan, glows with a yellow aura, and charges at Saitama but misses. Saitama evades Goku's attacks while air hopping. Goku lands multiple punches, but Saitama uses an afterimage to trick him. Saitama then punches Goku, sending him crashing down and reverting him from his Super Saiyan form.