Pokémon, also known as Pocket Monsters in Japan, is a Japanese media franchise managed by The Pokémon Company, a company founded by Nintendo, Game Freak, and Creatures. The franchise was created by Satoshi Tajiri in 1995, and is centered on fictional creatures called "Pokémon". In Pokémon, humans, known as Pokémon Trainers, catch and train Pokémon to battle other Pokémon for sport. Games, shows and other works within the franchise are set in the Pokémon universe. The English slogan for the franchise is "Gotta Catch ‘Em All!".The franchise began as Pocket Monsters: Red and Green (later released outside of Japan as Pokémon Red and Blue), a pair of video games for the original Game Boy handheld system that were developed by Game Freak and published by Nintendo in February 1996. It soon became a media mix franchise adapted into various different media. Pokémon has since become the highest-grossing media franchise of all time. The original video game series is the second-best-selling video game franchise (behind Nintendo's Mario franchise) with more than 368 million copies sold and one billion mobile downloads, and it spawned a anime television series that has become the most successful video game adaptation with over 20 seasons and 1,000 episodes in 169 countries. In addition, the Pokémon franchise includes the world's top-selling toy brand, the top-selling trading card game with over 30.4 billion cards sold, an anime film series, a live-action film (Detective Pikachu), books, manga comics, music, merchandise, and a temporary theme park. The franchise is also represented in other Nintendo media, such as the Super Smash Bros. series, where various Pokémon characters are playable.