JcFerggy's ROM hack focuses on pixel-perfect precision, meaning it likely involves adjustments to level design, enemy placement and hitboxes to ensure a more consistent and precise experience. The "Pixel Perfect" moniker suggests a refinement rather than a complete overhaul of the original game. It remains a testament to community dedication and commitment to detail.

Sonic the Hedgehog (USA, Europe) [Hack by JcFerggy v20080831] (~Sonic - Pixel Perfect)

Sonic the Hedgehog (USA, Europe) [Hack by D.A.Garden v1.0] (~Sonic the Hedgehog - Westside Island)