sentences:  Mini-games and platforming are also featured, with three dimensional backgrounds and two dimensional characters.In mid-2007, game director Tetsuya Nomura decided to create a "Kingdom Hearts" spin-off for mobile phones that would have a different gameplay style than previous titles and allow players to explore the game like a playground.The game was originally released in eight parts and one preview to mobile phone gamers from June 2009 to January 2010.