Sonic 2 Retro Remix - Walkthrough with all Emeralds

Sonic 2 Retro Remix is a ROM hack of Sonic the Hedgehog 2 for the Sega Genesis / Mega Drive. The goal of the project is to create a 2D Sonic game that requires exploration to progress as well as the requisite platforming and sheer speed. A mission system akin to 3D Super Mario games is implemented as the means of progressing from one level to the next. Missions range from scavenger hunts to boss battles to speed runs to score attacks; most of them require learning each level’s ins and outs instead of findin