"The so-called Super Beast Armed is a higher-level application of alien energy than your Arming forms. It might look like a mechanical construct, but it's actually a construct of alien energy. It's exclusive to their world—the world I came from."
"Although people in this world now have alien energy, the Arming form is their limit. Entering a Super Beast Armed form is impossible. Every world has its own underlying rules, after all. Super Beast Armed forms and your martial souls are alike in that regard: they're unique features of their respective worlds that can't be replicated."
"They can do it because they're life-forms born from alien energy. Their power comes from my previous world, and they aren't native to this one, so naturally, they can enter Super Beast Armed here," Ao Zhan explained.
Simply put, every world had its own unique features.
For people from the Douluo Continent, entering a Super Beast Armed form was impossible!
Of course, Ao Zhan could enter Super Beast Armed too. When he arrived on the Douluo Continent, his body had reverted to that of a three-year-old, but it was still the body he had possessed in the Super Beast Armed World, not one from here.
That was why he could also enter Super Beast Armed. It simply made no difference to him whether he used it or not; he was powerful either way.
For people from the Douluo Continent, obtaining alien energy and entering Arming was the absolute limit. Anyone born in the Douluo Universe naturally carried this world's imprint within their body. That imprint was part of their fundamental makeup, just like everyone's martial soul.
As for Ao Zhan and the others gaining this world's unique feature—martial souls—that was thanks to the world accepting them after their arrival. Before they turned six, its