The Universal Central is the place that most Portals lead to, and the main setting of The Final Destination Universe Showdown. It was shaped by Destonator. It's main path is colored pink with purple spots. On each side, there are Portals that appear and disappear. Nothing is visible beyond the Portals, it's just purple space. There are purple walls behind every Portal, so nothing can fall off the Universal Central. The Portal that leads to Cavius and the Legendary Hero Temple are in the very center of the Universal Central.
After the 12,000 years Destonator spent sleeping in a remote Universe, he woke up noticed his unbelievable increase in strength. He started plotting to take over the Destiny Universe (Light and Dark's Universe), but noticed he looked different in his current location than what he remembers in Kahran. He assumed that he was in a different Universe and concluded that there are more than one Universe. He noticed he had the power to shape matter and created a place where he could stay and think. But unknowingly, Destonator destabilized the space-time continuum and created Portals that started appearing everywhere in all Universes. Destonator stepped into one (which lead to the Mothra12 Universe) and saw Firis flying in space. Destonator came to Firis, but Firis did not attack. Destonator started talking in Kahranian, which Firis did not understand and nodded to. Eventually Destonator grabbed Firis and took him to a new Portal (that lead to the Kirby universe) and they took Cavius. They then went to the Destiny Universe and took the Legendary Hero Temple to Cavius. They put both in the center of the Universal Central and spent a long time there. Destonator and Firis became friends and Firis learned to speak Kahranian. They went to an unknown planet and enslaved the Shalos, and Exzo agreed to join them. Destonator ambushed Palkia and Dialga and absorbed them, gaining their powers. It all started when the first observable Portal appeared in front of Kahran, the FDUS began.