Sega's Sonic Team studio also created a mobile application called Ulala's Channel J for Japanese Vodafone devices in July 2001. The application was made up of several minigames, most themed after the series and specifically Space Channel 5: Part 2. Some featured 3D graphics that required higher-specification devices to play. Themed mobile wallpapers and jingles were also included for download. The game shut down in September 2005, with some of its content merged into the Sonic Cafe mobile service.
