Sonic the Hedgehog protagonist Sonic the Hedgehog, a blue hedgehog able to run at supersonic speeds, and recurring villain Dr. Eggman, an evil scientist whose ambition is to conquer the world. Among Sonic's many allies, the most well-known include: Miles "Tails" Prower, a twin-tailed, highly intelligent yellow fox who is Sonic's sidekick and best friend; Amy Rose, a pink hedgehog who is Sonic's self-proclaimed girlfriend and a hero in her own right; Knuckles the Echidna, a coolheaded red echidna who is the guardian of the Master Emerald; Shadow the Hedgehog, an anti-heroic doppelgänger of Sonic with a dark past; and Metal Sonic, a
Sonic the Hedgehog in 1996 alongside the Genesis version. Like its Genesis counterpart, the Saturn edition used isometric, 2.5D graphics, but it added FMV cut-scenes, enhanced music and visual effects, and a real-time 3D special stage. "Sonic Jam", a compilation released for the Saturn in 1997, contained the original "Sonic the Hedgehog", "Sonic the Hedgehog 2", "Sonic the Hedgehog 3", and "Sonic & Knuckles", as well as a "Sonic World" mode, which allowed the player to control Sonic in a small 3D world. The Sonic World was mainly a means of accessing the disc's multimedia features, which included character artwork, the soundtrack, and