What is your favorite weapon to use in Luigi's mansion? Mine is probably the Ice element. It's really fun to use in the game along with the other elements, the fire element, and the water element. Also the polergust3000 has alot of equipments and stuff. It also works as a charm as a ghost vacuum and flashlight. And the gameboy horror can really come in handy incase you got lost in the giant mansion, or if you found a door key and you don't know which door it goes in. It really is a copy of gameboy color, only a haunted version of it. I love the Gameboy horror. And the boos, you probably couldn't even find half if it wasn't for the Boo detector created by Professor E. Gadd that's equipped to the Gameboy horror. That's about all the weapons I know of in the game.