Sonic 2 SMS enhanced remake Sonic and Sega Retro Forums

General Project Screenshot/Video Thread, Page 214

The Definitive Sonic CD Iceberg - 8 Layers + New Entries implemented by Me : r/IcebergCharts

Sonic CD PC Stupidity, Page 2

Sonic 2 HD Contains Keylogger, Delete Immediately : r/Games

Sonic the Hedgehog 4 (Video Game) - TV Tropes

Sonic 2 poster : r/gaming

General Project Screenshots/Video Thread, Page 50

Sonic Origins on Steam

SEGA AGES Sonic the Hedgehog 2 will feature Knuckles the Echidna : r/NintendoSwitch