Kingdom Hearts (キングダムハーツ, Kingudamu Hātsu) is an action role-playing game developed and published by Square Soft (now Square Enix) in September 17, 2002 for the PlayStation 2 video game console in America. It is the first game in the Kingdom Hearts series. It was created due to the collaboration between Square and Walt Disney. The game was successful, both commercially and critically. It has sold over 5.6 million copies worldwide. It has many sequels including Kingdom Hearts: Chain of Memories, Kingdom Hearts II, etc. An enhanced Japan-exclusive version of the game called Kingdom Hearts: Final Mix, was released in December 26, 2002.