Sonic R (ソニックR Sonikku Ā?) is a racing game that was developed by Traveller's Tales and Sonic Team for the Sega Saturn and PC, the latter version being ported to the Nintendo GameCube and the PlayStation 2 in Sonic Gems Collection. It was initially released for the Sega Saturn but was later ported for the PC. Sonic R is the first appearance of the characters Metal Knuckles and Tails Doll and the first playable appearance of Eggrobo.