Sonic the Hedgehog 2 (World) (Rev A) [Hack by ColinC10 v1.0] (~Robotnik's Revenge) (Boss Mode) is a ROM hack created by ColinC10, modifying the original Sonic the Hedgehog 2 (Rev A) for Sega Genesis. The hack focuses on a 'Boss Mode', altering the game to primarily feature boss battles. The 'Robotnik's Revenge' subtitle hints at a storyline centered around Dr. Robotnik. This modification departs significantly from the original game's structure, changing the gameplay flow and level progression. Sega's original 1992 release remains a benchmark in 2D platforming, but this hack offers a vastly different experience for players seeking a unique challenge focused solely on boss encounters.

Sonic the Hedgehog 2 (World) (Rev A) [Hack by ColinC10 v1.0] (~Robotnik's Revenge) (Boss Mode)

Sonic the Hedgehog 2 (World) (Beta) (Simon Wai) [Hack by Esrael v0.23] (~Sonic 2 Delta)