Henry and Orville

Henry and Orville, the Twin Brothers are two ghosts from Luigi's Mansion.

Henry and Orville are the sons of Lydia and Neville, they are also the brothers of Chauncey. Henry and Orville's favorite game to play is hide and seek and since they both like to hide the game usually lasts a long, "long" time.

When Luigi first entered the Twin's Room room he found it empty. To lure the twins out of hiding, he used his trust vacuum to spin some airplanes hanging from the ceiling. The twins decided to play hide and seek with Luigi, each hiding in one of five boxes. Using his Poltergust, Luigi realized that a brother would shiver and that the game would easily be won.

But, the twins accused Luigi of cheating and blocked the door with a force field, then summoned a car and an airplane with bombs. To make them vulnerable, Luigi sucked the car and the airplane, capturing each twin one by one. Upon lighting the room he retrieved Mario's shoe.

Trivia

 * Neville writes in his diary in the Study that the twins are more afraid of the elements (fire, water, ice and wind) than the baby (Chauncey). Luigi can use this as a clue to find the brothers.
 * Only the red-clad twin (in the airplane) gives up the pearls, so get him second.