Sonic 3 & Knuckles: The Challenges - All "S" Ranks Walkthrough

Sonic 3 & Knuckles: The Challenges is an award-winning hack of Sonic 3 & Knuckles by ColinC10. In this hack the player must complete various levels from S3&K, which newly feature specific challenges to complete, e.g. collecting a certain number of rings or protecting Tails from danger. Completing challenges unlocks more challenges, and players' progress is automatically saved to SRAM. Download: http://info.sonicretro.org/Sonic_3_%26_Knuckles:_The_Challenges