Sonic the hedgehog (G6 Version 2DLC2.5) is likely a ROM hack derived from Sonic the Hedgehog for the Sega Genesis. The title implies the incorporation of elements reminiscent of game versions from a 'G6' source—potentially a different gaming platform or emulator—alongside 'DLC' content, hinting at features similar to downloadable content found in modern gaming. The gameplay remains rooted in classic Sonic platforming but might contain altered levels, new abilities, or other modifications. Detailed information on the creators is likely available through ROM hacking communities.

Sonic the hedgehog (G6 Version 2DLC2.5)

Sonic the Hedgehog - The Lost Worlds