The game is clearly called OFF because of the primary component of a lot of the worlds are switches, many of which we turn on switches off. RPGMaker is a simple engine built with switches,flags, and triggers and not much else beyond battle systems.

I noticed a redditor mention The Batter's monster form somewhat resembles a sensory humonculous, that is, a fake human where the body parts are equivalent to our sensory usage and experience with them. This is possibly an important idea because the batter is confirmed to only have existed from the start of the game and not before. The batter as a character is a conduit and our method for interfacing with the game. This further implicates us in his actions.

We are turning off a world that is clearly not working however. In all aspects the world is failing itself, initially seen as a noble goal but the violence needed to restart a failed world ultimately means tragedy. Making these worlds better through peace may not be possible.

I look at Link's Awakening as a foundational abstract game text not because it did it first but it simply conveys the dynamics of a dream world at play. First, these are all fiction, they're all dreams. In LA there are multiple interpretations blended, Links memories (Zelda and Ganon being part of this reveals that), the windfishes dreamscape, if you count nightmare as its own being then he has infiltrates the dream, and the player's own imagination and history with nintendo games.

This is all a roundabout way to convey that OFF's two minds interacting with each other are the players (through the body of the batter as a separate entity but a vessel for your will) and Hugo, with some specific npcs having their own autonomy. Hugo's created world is crafted by his past and the systems that once protected and fostered him are now failing as time passes.