Luigi's Mansion 3 is a game for the Wii 3D. It is the third Luigi's Mansion game. King Boo returns for the last time, and the Poltergust has been upgraded to the Poltergust 9000. And it started with Waluigi and Wario trying to catch coins at the field were World 1 is. But suddenly King Boo steals the coins and Wario got angry about it. So Waluigi got an idea of Mario Luigi and the others to help them but Wario didn't want to team up with them so he got there all by himself. But before Waluigi arrived there E. Gadd called Luigi on his Gameboy Horror. E. Gadd told about King Boo is back somehow and he and his friends needed to help him. So then Waluigi arrived at the Castle and he said he would help them stop King Boo. So join Luigi,all the Toads,Waluigi,E. Gadd, and Toadette on an adventure