Wechnia is a ROM hack of Sonic the Hedgehog, a popular Sega Genesis platformer. This isn't an official release but a fan-made modification that alters elements of the original game.  The exact changes and gameplay impact vary depending on the specific version of Wechnia.  Such ROM hacks often offer modified level design, gameplay mechanics, or aesthetic changes, providing a unique take on the original Sonic experience.  The original Sonic the Hedgehog was created by Sega.

Wechnia in Sonic The Hedgehog

Wayne Gretzky and the NHLPA All-Stars (USA, Europe)