This page is for the emulated re-release. For the Windows 95 compilation, see Sonic & Knuckles Collection.
Sonic 3 A.I.R. is a fan project aimed at making an accurate, reverse-engineered PC port of Sonic 3 & Knuckles. It includes a number of graphical improvements such as 16:9 widescreen, 60 fps in special stages, smooth sprite rotation, and easier mod support.