Sonic the Hedgehog platforming of the main levels. The 16-bit "Sonic the Hedgehog " consisted of a giant rotating maze, which many considered a major technical achievement. The most common special stages, however, were segments with the character running through a long tunnel to collect certain items. 3D "collect item" levels, as in "Sonic 3" and "Sonic & Knuckles", used the same perspective but had Sonic collecting all the blue-colored orbs on the surface of a giant sphere. Finally, "Sonic Advance 2" employed a 3D ring-collecting stage, and "Sonic Chaos" ("Sonic and Tails" in Japan) used a variety of gimmicks for its levels.
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