So if a character has powers that are partly dependent on what the nature of reality is, how should that be handled for apping?

That is to say, while some of Akira's abilities work just fine in what we will loosely call normal reality, his full out Persona powers usually require him to be in the Metaverse's cognitive reality. I'm planning to pull him from a time when reality and Metaverse were starting to merge, but I don't want to assume that means The Barge's reality will allow for the use of any of his Metaverse bullshit, nerfed or not.