Konami Yu-Gi-Oh! TCG Battles of Legend Monstrous Revenge Pack

Konami Group Corporation, commonly known as Konami, is a Japanese multinational entertainment company and video game developer and publisher headquartered in Chūō, Tokyo. The company also manufactures and distributes trading cards, anime, tokusatsu, pachinko machines, slot machines, and arcade games. It has casinos worldwide and operates fitness and health clubs throughout Japan.

The company originated in 1969 as a jukebox rental and repair business in Toyonaka, Osaka, Japan, founded by Kagemasa Kōzuki, who remains the company's chairman. In addition to its flagship development subsidiary, Konami also owns Bemani, known for Dance Dance Revolution and Beatmania, as well as the assets of former game developer Hudson Soft, known for Bomberman, Adventure Island, Bonk, Bloody Roar, and Star Soldier. Konami is the 20th largest video game company in the world by revenue. Konami also publishes the Yu-Gi-Oh! trading card game, one of the best-selling trading card games of all time. Konami's gaming franchises include Metal Gear, Silent Hill, Castlevania, Contra, Frogger, Tokimeki Memorial, Gradius, Parodius, Yu-Gi-Oh!, Suikoden, and eFootball.