A special "Wonderful World" edition of the "Gloss Silver" Nintendo DS Lite was created and sold as a bundle with the game as part of its Japanese release. The game's early plot was adapted into a two-chapter one-shot manga by Shiro Amano, published over two issues of "Monthly Shōnen Gangan". In North America, the manga has been released online via the Square Enix Members website, along with mobile phone ring tones. Both Nomura and Tatsuya Kando stated that they hoped they would be given the opportunity to create a sequel to the game. Neku, Shiki, Joshua, Beat, and Rhyme appear in the video game "" as non-playable characters who are challenged to a task similar to the Reapers' Game. The cameos are the first non-Disney and non-"Final Fantasy" characters to appear in the "Kingdom Hearts" franchise.