While was originally exclusive to Sonic 3 & Knuckles , you can experience this powerful transformation in Sonic the Hedgehog 2 through specialized ROM hacks or a specific in-game glitch . Hyper Sonic ROM Hacks
Assuming you have a clean Sonic 2 (World) ROM (MD5: 8ec4f1f6e3f5f9e3e8c6d4f2a1b3c5d7), follow these steps: Hyper Sonic In Sonic 2 Rom Download
Unlike the yellow Super Sonic, Hyper Sonic features a rapidly cycling color palette (rainbow effect) and after-images (ghosting) when moving at high speeds. Hyper Sonic While was originally exclusive to Sonic