The game was talked about in E3 2006. On January 9 2007, Nexon and the newly made Nintendo of Korea put up a trailer for the game. They first said the game would be put up in September 2007. It was found out it will be an online game, that works with the Nintendo DS Wi-Fi System. In an interview with the boss of international business development, Stephen Lee said that the game will work in single player. He also said there were going to be microphone and touch-responsive features.