Jarvis

Jarvis, the Jar Collector, is an antique jar collecting ghost of unknown age. Apparently, Jarvis loves jars so much, he now lives inside one. Luigi first discovered Jarvis in the Ceramics Studio on the second floor of Luigi's Mansion. Although Luigi did not need to capture Jarvis to save his brother, the green-clad plumber could earn a Blue Diamond and two Gold Bars if he bested the portrait ghost in combat.

After entering studio, Luigi quickly explored the jar-filled room. After examining the area around the far wall, Jarvis appeared from one of the jars and challenged Luigi to a “whack-a-mole” style game. If Luigi could hit Jarvis with blasts of ice seven times, the jar collecting ghost would allow the hero to fight him. After collecting an Ice Elemental Ghost, Luigi shot icy mist at Jarvis as the ghost warped to different jars around the room. After seven hits, Jarvis was ready for the real test to begin.

Angered by losing the game, Jarvis started levitating ceramic jars and mentally throwing them at Luigi, dealing five damage for every hit. Luigi countered by sucking up Jarvis with the Poltergust 3000. Eventually, Luigi overcame Jarvis’ medium pull and captured the portrait ghost. After collecting the ghost’s treasure, Luigi continued his search for his captured brother.

He may or may not of been inspired by Roger The Potted Ghost, who appeared years before him in the game Yoshi's Island