Following its financial struggles, Namco's arcade division underwent mass reorganization.[1] This division achieved strong success with Taiko no Tatsujin, a popular drum-based rhythm game where players hit a taiko drum controller to the beat of a song.[158] Taiko no Tatsujin became a best-seller and created one of the company's most popular and prolific franchises.[159] Namco's North American divisions, in the meantime, underwent reorganization and restructuring as a result of decreasing profits.[160] Namco Hometek was stripped of its research and development divisions following Namco's disappointment in the quality of its releases.[161] Its continuing expansion into other non-video game divisions, including rehabilitation electronics and travel agency websites, prompted the creation of the Namco Incubation Center, which would control these businesses.[162] The Incubation Center also hosted the Namco Digital Hollywood Game Laboratory game school, which designed the sleeper hit Katamari Damacy (2004).[163]