King MacFrights

King MacFrights is the sixth boss encountered in Luigi's Mansion 3. King MacFrights is encountered and fought on the sixth floor after Luigi locates him at Castle MacFrights. He then taunts Luigi with the elevator button to the seventh floor and challenges him to make it through his castle and reach him.

Appearance
King MacFrights is a medieval ghost with an appearance similar to a king. He has a red beard, gloves, and hair that has a large bald spot and a gold crown with rubies on top of his head, as well as yellow eyes and a mouth.

Luigi searches the jousting area when King MacFrights notices him on a balcony. Enraged at his presence, he then possesses a suit of armor attached to a steed, and then, upon showboating the "audience", charges at Luigi, forcing the latter to dodge.

Battle
The first phase of the battle has King MacFrights riding around the arena and then charging at the player, requiring a well-timed Strobulb flash to stun him long enough to fire a Suction Shot at him and then slam his armor around. The armor needs to be slammed nine times to destroy it, and Luigi can slam it up to three times per cycle. During each successive portion, he will also order for fire arrows to be launched. The more you smash his armour, the more arrow shooters will open. And,The closer his armor is to being destroyed, the faster and farther he will charge. The amount of arrows fired during a volley also increases as the fight goes on, starting at one and going up to five. Once his armor is destroyed, King MacFrights is armed only with a sword and shield, and after doing a spinning charge, he will drop the shield and struggle to pick it up, dizzying himself and leaving him vulnerable to the Strobulb. Upon being defeated, he will try to use his sword to prevent himself from being sucked in, only for him to cause his sword to spin in the air and get sucked in as he's reaching for it. The "audience" then boos at Luigi before “magically” vanishing with Luigi getting the seventh floor's elevator button.