Sonic & Knuckles Collection

The Sonic & Knuckles Collection contains three games ported from the Sega Genesis:

• Sonic the Hedgehog 3
• Sonic & Knuckles
• Sonic 3 & Knuckles (Sonic the Hedgehog 3 running with the Sonic & Knuckles modification enhancement)

In addition it contains Special Stage Mode, a collection of bonus levels previously available in Sonic & Knuckles as "Blue Sphere".