Sonic 2 with Knuckles v1.1 is a ROM hack of Sonic the Hedgehog 2 for the Sega Genesis, similar to "Sonic 2 with Knuckles" but representing an updated version. This likely involves bug fixes, balance adjustments, or additional content not present in the previous version. The base game is Sonic the Hedgehog 2, a classic platformer from Sega and Sonic Team. The gameplay remains true to the original with the added character of Knuckles, but version 1.1 provides enhancements and improvements. This ROM hack is the product of independent ROM hackers and not an official Sega release.

Sonic 2 with Knuckles v1.1

Sonic 2 Turbo