So when Gohan transformed back to normal, he was the same age as he was in the Cell Games. But the blast was absorbed mostly by Trunks and less by Gohan. So when Ultron shot a high powered blast, the 2 Saiyans were somehow able to absorb the energy and transform back to normal. But, Bulma brought Gohan and Future Trunks to the battle, even though they were mere rocks. He didn't even let them have a chance to fuse. When he comes back stronger than ever, Ultron is able to defeat the warriors without much effort. It was so much power, that it caused Ultron to "evolve" into a even stronger form. He get's close enough to not get killed, but to absorb the energy emitted from the powerful rays. Not also that, with the Z fighters having a hard time fighting the robot, Ultron send his Sentinels to cover him up as he rapidly fly's to the Sun in a split second. Turns out that Ultron predicted it and countered it with an even stronger plan. Meanwhile, Super Ultron is creating yet another army of sentinels that are even stronger than before, and with resemblance of the creator himself. Which begins with encountering the enemy. After the unfortunate encounter, the Z fighters reunite and creates a plan. Before Goku flees, Ultron is able to absorb some of his energy, like he did to Gotenks. It appears Ultron is capable of creating robotic versions of his enemy's. A Chamber opens with a robot version of Piccolo and Vegeta, possessing the same power level as they fought at the city. Ultron is easily capable of incapacitating the Saiyan. Goku fights Ultron in Super Saiyan 1 level, and it barely made it out.
You can use Support Attack (R1 for the PS4), to select an attack that they can use during combat. Choose 'Continue waiting for Goku' option to forward the story. Gotenks was about to get killed by Ultron after his energy was absorbed, but Goku saved him after destroying the Sentinel. Talk to everyone to find oput what to do about the sinister Saiyans. He is not able to fully hide his ki due to the great amount of power he possesses, so he was found easily Trying to prove themselves to the others, the two saiyans go in search for Super Ultron. While Ultron is building an army of a stronger version of Sentinels, Gohan and Trunks hear about the event.