Konami Holdings Corporation (Japanese: ???????????????, Hepburn: Konami Horudingusu Kabushiki-gaisha?, commonly referred to as Konami; TYO: 9766 OTC Pink: KNMCY) is a Japanese entertainment company. It operates as a product distributor, which produces and distributes trading cards, anime, tokusatsu, slot machines and arcade cabinets, video game developer and publisher company. It also operates health and physical fitness clubs in Japan. Konami is famous for popular video game series such as Castlevania, Contra, Dance Dance Revolution, Gradius, Frogger, Suikoden, Ganbare Goemon, Metal Gear, Mirmo, Beatmania IIDX, Pro Evolution Soccer, Boktai, Silent Hill, Yu-Gi-Oh!, and Sound Voltex. The 2012 purchase and absorption of Hudson Soft resulted in the addition of several other popular franchises, including Adventure Island, Bonk, Bloody Roar, Bomberman, Far East of Eden and Star Soldier. Konami is the twentieth-largest game company in the world by revenue. The company was founded in 1969 as a jukebox rental and repair business in Toyonaka, Osaka, Japan, by Kagemasa Kozuki, who remains the companys chairman. The name "Konami" (/ko?'n??mi/; Japanese pronunciation: [kó.nà.mì]) is a conjunction of the names Kagemasa Kozuki, Yoshinobu Nakama, and Tatsuo Miyasako.