The collection includes:
Sonic the Hedgehog 3
Sonic & Knuckles
Sonic 3 & Knuckles
Blue Sphere (in options dialog as “Special Stage Mode”)
unripped ISO

Minimum system configuration
*Windows95
*Pentium 75MHz or superior CPU
*16 Megabytes of free memory
*Minimum of 20 megabytes free Hard Disk space
Recommended system configuration
*Pentium 133MHz or superior CPU
Download
http://rapidshare.com/files/251636228/sonic_collection.part1.rar
http://rapidshare.com/files/251624686/sonic_collection.part2.rar
Hotfile
http://hotfile.com/dl/7965766/ede2df1/sonic_collection.part1.rar.html
http://hotfile.com/dl/7966293/691cdd2/sonic_collection.part2.rar.html