This is a gallery of images featuring King Boo.
Luigi's Mansion
Luigi's Mansion (pre-release)
Mario Kart: Double Dash!!
Mario Kart Wii
Mario Super Sluggers
Luigi's Mansion: Dark Moon
Mario Party 10
Mario Party: Star Rush
Mario Kart Arcade GP DX
Dr. Mario World (assistant)
Dr. Mario World (doctor)
Luigi's Mansion 3
King Boo and Polterpup drawn by Kinopio-kun
Group artwork for Mario Kart: Koopa's Challenge from Super Nintendo World
Luigi's Mansion (bronze portrait)
Luigi's Mansion (silver portrait)
Luigi's Mansion (gold portrait)
Mario Kart: Double Dash!! (map)
Super Mario 64 DS
Mario Superstar Baseball
Super Princess Peach
Mario Kart DS
Mario Party 8
Mario Kart Arcade GP 2
Mario Kart Wii (map)
Mario Kart Wii (awards ceremony)
Mario & Sonic at the Olympic Winter Games (Nintendo DS)
Mario & Sonic at the Olympic Winter Games (Wii)
Mario Party 9
Mario Party 9 (Bowser's Block Battle)
Super Smash Bros. for Nintendo 3DS (trophy)
Puzzle & Dragons: Super Mario Bros. Edition
Mario & Luigi: Paper Jam
Mario Kart 8 Deluxe
Mario Kart 8 Deluxe (map)
Luigi's Mansion (Nintendo 3DS)
Dr. Mario World (doctor, sad)
Mario Kart Tour (Luigi's Mansion)
Mario Kart Tour (Gold)
Mario Kart Tour
Mario Kart Tour (map)
Mario Kart Tour (Luigi's Mansion, map)
Mario Kart Tour (Gold, map)
Mario Kart Tour (beta)
Mario Kart: Double Dash!! (driver platform)
Mario Kart Tour (cup)
Mario Kart Tour (badge)
Dr. Mario World
Mario & Sonic at the London 2012 Olympic Games (Nintendo 3DS)
Mario Party 9 (constellation)
Mario Party 9 (Boo Blanket)
New Super Luigi U
Mario Golf: World Tour
Mario Party 10 (King Boo Sleigh)
Mario & Luigi: Paper Jam (Papercraft)
Luigi's Mansion Arcade
Mario Tennis Aces
Tetris 99
Super Mario-Kun
Laugh from Luigi's Mansion