Sonic Rush is an action game released for the Nintendo DS and is the first three-dimensional handheld Sonic game. Sonic had also been released to the Sega Game Gear, Sega Nomad, and Nintendo Game Boy Advance prior. It is also Sonic's debut on the DS. Most of the game is played as a sidescroller much like the original Sonic games, but boss battles are done in an isometric mode. It also is the debut of Blaze, a cat, whose power is to spin thus creating a ring of fire around her. The game takes a more limited use of the various DS capabilities, instead using the two screens to recreate classic Sonic gameplay as seen in the 16bit era. The touchscreen is mostly used like a part of a larger screen. The touchpen is used primarily during special zones.