Yokai Watch is a popular Japanese media franchise created by Level-5. It centers around a young boy named Keita Amano who discovers a special watch that allows him to see and interact with Yokai, which are supernatural creatures from Japanese folklore. The franchise includes video games, an animated television series, movies, and merchandise. In the games, players capture and befriend various Yokai to help solve problems and battle other creatures. Each Yokai has unique abilities and personalities, contributing to the game's strategy and storytelling. The franchise has gained a significant following, especially among children, and has expanded beyond Japan to other countries.