(Not to be confused with the regular Dungeon)
Mind Dungeon is a form of Dungeon on the Heroic Path.
They're unique in that you enter a persons mind in order to save them and they have unique enemies.
At the moment, there's two Mind Dungeons.
Valerie's Mind, which is basically a roller skating rink with sentinent roller skates.
Sarah's Mind, which is as if the entire world is on fire. Including the enemies.