Nursery, Luigi's Mansion Wiki

The Nursery is a room found by Luigi in Luigi's Mansion, where Chauncey, the boss of the first area, is fought. The room is located in the first area of Luigi's Mansion. When Luigi first enters the Nursery, the player will see Chauncey in the crib. If the player wakes up Chauncey by rocking the toy horse with the Poltergust 3000, after which Chauncey will appear next to it. Chauncey will ask Luigi to play with him, whereas the player will then have to suck up the toy ball and shoot it at Chaunce

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