|Zero X Hunter (Ryuji Chronos)|
Ryuji Chronos was born in the slums of Gundalia. Down there, he learned combat skills from his family. One day, he went off on his own and found a cavern. All Gundalians knew the deepest parts of the planet held the greatest secrets. Ryuji entered the cave and in the deepest part, he found a Bakugan. It was a Darkus Dharak. His prescene had awoken the Bakugan. The two stared each other down and out of nowhere, a symbol burned into both of their hands. This proved they shared two halves of the same Switch Code. The two became partners.
Ryuji Chronos was sent to Earth as a scout during the Neathian-Gundalian War. While on Earth, Ryuji met Brawley X Masterz. The two talked and instantly became friends. The two brawled, Masterz won. Then Masterz asked Ryuji to join the Bakugan Elite Core Brawlers, and so he did.
One day, on Gundalia, Ryuji was apporached by a scientist named Professor Felyx Murph. Murph asked about Ryuji's Dharak and Ryuji showed him the scar. Murph said he could help awaken Dharak's true power. Ryuji agreed, without considering the consequences. Murph forced the activation of the Switch Code with a DNA Fragment of the original Dharaknoid and a small piece of the Element. The splicing of the 2 Fragments of DNA and Dharak caused a mutation. As Ryuji's hand bled, Dharak had become Razenoid. Seeing as this was his fault, Murph decided to take Ryuji in and help him master his Bakugan's new power.
Bakugan RP: Dimensional HeroesEdit
Masterz and Ryuji are still great friends. When Masterz and Phantom's Super Fusion Ability wasn't working, they went to Ryuji. Ryuji introduced them to Felyx Murph who helped them solve the problem.
Bakugan RP: Dimensional WarfareEdit
Ever since the masked villain, Scorch, sent the viral video across the different dimensions saying Brawley X Masterz and everyone associated with him is evil, Ryuji became a fugitive. While trying to clear their names on Gundalia, Masterz and Aides Immortus ran into Ryuji. Ryuji had assumed a new identity. He was a hunter on the run who had to make himself look like a zero so no one would realize it was him. He took the name Zero X Hunter, which also reflected the name Brawley X Masterz, also showing how close the two are. There, Masterz formed the Brawlers Anonymous.
- Darkus Dharak (Guardian Bakugan)
- Darkus Razenoid (Mutated Guardian Bakugan)