Chef Soulfflé

Chef Soulfflé is the fourth boss encountered in Luigi's Mansion 3. He is encountered and fought on Floor 2 after Luigi locates him in the Mezzanine kitchen. Defeating Chef Soulfflé rewards Luigi with the elevator button to the fourth floor. His name is a pun on "soul" and "soufflé".

Appearance
Luigi and Gooigi end up exposing Chef Soulfflé after sucking up a huge amount of smoke (presumably caused by his attempts at preparing food). After discovering Luigi and Gooigi in his kitchen, he drops the fish he was flipping and angrily confronts them.

Battle
Chef Soulfflé wields a frying pan, which he uses both to attack and to protect himself from the Strobulb. In order to defeat him, the player has to take it from him with the Suction Shot or fling pumpkins and/or watermelons at him to disarm him of his pan allowing for an opportunity to flash him and stun him to suck him in. If Luigi runs out of pumpkins and watermelons, Soulfflé will toss fish at him which can be thrown the same way. Largely because of the difficulty of doing so, it's advisable to have Gooigi act as a decoy to do so. Defeating him technically rewards Luigi with the fourth floor elevator button, although a Mouse steals it before Luigi can retrieve it.

Trivia

 * Chef Soulffle's face greatly resembles that of Robotnik from The Adventures of Sonic the Hedgehog series.