Kingdom Hearts is a series of action role-playing games developed and published by Square Enix (formerly Square). It is the result of a collaboration between Square Enix and Disney Interactive Studios, and is a crossover of various Disney settings based in a universe made specifically for the series. The series features Disney, Final Fantasy, The World Ends with You, and Pixar characters, as well as several original characters designed by Tetsuya Nomura.[1] In addition, it has an all-star voice cast which includes many Disney characters' official voice actors.
The series centers on Sora, his friends, and their encounters with various Disney and Final Fantasy characters along the way. Players primarily control Sora, though there are numerous characters that join his party as computer controlled members. Most characters were introduced in the original game Kingdom Hearts, with subsequent installments featuring new original, Disney, and Final Fantasy characters. Dream Drop Distance introduces characters from Square Enix's The World Ends with You, while Kingdom Hearts III introduces characters from Pixar franchises.[2][3][4]
Various types of merchandise modeled after the characters' likeness have been produced, including figurines and jewelry. The characters have garnered praise from several video game websites and magazines for the quality of their voice acting and visual style. Comments have focused on the accurate presentation of Disney characters, the unique visual style of Square Enix characters, how well all the characters blend together, and the consistent quality performances from voice actors.