Inverted: Villain Inc. invades Hero Inc.'s universe.
Subverted: At first it seems like they stumbled onto an alternate universe, but it turns out to be a cosplay convention.
Double Subverted: Then they walk outside and discover it really is an alternate universe.
Every single citizen on Villain Inc's universe is evil and has a beard— even the females.
Everything is reversed even what a reverse is meaning there is no difference
Zig Zagged: Heroes Inc. are not in a mirror universe; it's a mind game being played by another villain. But the mind game creates a tear in the space-time continuum, which creates the mirror universe, where the heroes made a Face-Heel Turn and became Villains Inc. Heroes Inc. never finds out about the mirror universe that now actually exists.
Invoked: "If my calculations are correct, we should arrive in the Mirror Universe."
Exploited: The heroes purposefully travel to a Mirror Universe to get resources that less moral versions of themselves have access to, or to recruit good counterparts of their own universe's Villains Inc.
Defied: "Damn it, we're in the Mirror Universe! Let's get out of here before something plot-related happens!"
Discussed: "This world looks like something the people of a Mirror Universe would love to inhabit."
Conversed: (putting away a comic book), "Why does every single comic book company have a Mirror Universe? I gotta check Wikipedia to see if Paramount owns every single comic book company."
Deconstructed: Heroes Inc. find that they're Not So Different from their "evil" counterparts, leading them to question their own motives and actions.
Reconstructed: . . .but, unlike their counterparts, they realize their wrongdoings and ultimately become better people for it.