Luigi Mansion 2, planned to be released as Luigi's Mansion: Dark Moon outside of Japan, is an upcoming video game currently being developed by Next Level Games for the Nintendo 3DS, and is the sequel to the 2001 game Luigi's Mansion for the Nintendo GameCube. It was announced at Electronic Entertainment Expo 2011 during the Nintendo press conference on June 7, 2011. Development of the game started in late 2010, with Shigeru Miyamoto overseeing the production. Miyamoto stated that he chose to work on the sequel simply because he ''wanted to'' after using the original game to test the hardware of the Nintendo 3DS. The original game for the GameCube was tested for 3D effects, but this was later scrapped. The game was revealed to be renamed from Luigi's Mansion...'
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