Sonic 3 & Knuckles: Power Of Knuckles is a ROM hack of Sonic the Hedgehog 3 & Knuckles for the Sega Genesis. It retains the core gameplay of the original game but introduces several significant alterations, such as a redesigned level layout and added features. While the original Sonic 3 & Knuckles is a classic platformer known for its fast-paced gameplay, beautiful graphics, and memorable soundtrack by Yuzo Koshiro and other composers at Sega, this ROM hack offers a completely unique experience.  It's unknown who created this specific ROM hack, a common trait amongst the many fan-made modifications for the game.

Sonic 3 - Power Of Knuckles

Sonic 3 - Blue Knuckles Story