With every set of universes inside a multiverse, there is a Omegaverse to contain those multiverses.
As opposed to Anti-Verse, which is how things are seen as we see them now, the Omegaverse is how those things are imagined. When characters enter the Omegaverse, they follow a different set of rules that can contradict each other. When Anti-Space enters the Omegaverse, it appears as Irregular.
Some of the multiverses included in the Omegaverse are the Lapisverse, the Spursverse, the Grandtheftaverse, the Mysteriousverse, and others.