To run the game, Sonic 3 A.I.R. requires an original copy of the Sonic 3 and Knuckles ROM.
You can get this file by purchasing the game on Steam for Windows, Mac or Linux. Please provide Sonic_Knuckles_wSonic3.bin:
On other platforms, Sonic 3 A.I.R. includes remastered music which is enabled by default.
None of the compositions have been altered, but instead the music is played back in higher quality
than the original MegaDrive or Genesis console was capable of. On this device the remastered music
is not included by default and you can install it here. Installing this may reduce the stability
of the game on devices with low memory causing stuttering or the game to no longer load at all.