History Characters / LuigisMansion

* AmbiguousSituation: It's never really made clear whether he's a separate entity from Luigi, or if Luigi controls him. He has his own personality (i.e., [[TheStoic none]]) and can act alongside Luigi in co-op. However, in single-player, Luigi goes into a trance when the player controls Gooigi and vice versa (which one cutscene even lampshades), Luigi seems to always know what Gooigi is doing despite no communication, and E. Gadd talks about him like he's a tool rather than a person, especially in the tutorial. That said, in another cutscene, he's seen waving at Luigi before [[AmusingInjuries getting into some slapstick shenanigans]], and stays behind with E. Gadd at the end of the game. He ''seems'' to have developed the ability to act on his own, but it's never directly addressed.

* TheBait: In order to hit Ug's T. rex skeleton host the second time, you have to deploy Gooigi as a snack for the dino, shooting its ribs with a fossilized egg while it tries to chomp down. Gooigi is also excellent bait for Slinkers, as they'll shift to trying to grab him rather than Luigi when Gooigi is out, making them sitting ducks for Luigi as they constrict Gooigi's shoulders. Using Gooigi as bait is also useful for taking down ChestMonster ghosts that would otherwise swallow Luigi whole. The dynamic is inverted if you use him during the Polterkitty fights; it's much easier to stun it by using Luigi as bait and attack as Gooigi, whom the cat ignores.

* PassingTheTorch: Was specifically created by E Gadd for this purpose, as he needed a permanent assistant for his increasingly dangerous paranormal research due to his age. He's hoping to send Gooigi on field missions in the future.

* MiniBoss: They're fought at key points over the course of the game and, outside of the main bosses, are the most difficult to defeat strategy-wise. In ''Luigi's Mansion Arcade'', one of them serves as the Boss Ghost of the first area - and is the only Poltergeist you face in that game.