: There is an official 2D side-scrolling version developed by Gameloft for older J2ME and BlackBerry phones. It plays similarly to the Sonic Rush series and features four continents: Chun-nan, Apotos, Spagonia, and Mazuri.
Sonic Unleashed on DS is a technically competent, unique entry in the series that adapts console ideas into a handheld-friendly format. It stands as a solid 2D Sonic game, distinct from its HD counterpart, and is worth seeking out legally for fans of classic-style Sonic gameplay. Sonic Unleashed Ds Rom
are fan-developed "demakes" that attempt to bring the console experience to handheld hardware. Fanon/Creative Wikis : Some sites, such as the Sonic Fanon Wiki : There is an official 2D side-scrolling version