Sonic 3 Cz is a ROM hack of Sonic the Hedgehog 3 for the Sega Genesis. Information on its specific features and origin is limited, suggesting it might be a less-known or more obscure modification.  It shares its basis with Sega's original Sonic 3, but deviates in unspecified ways through community modding. The exact nature of the 'Cz' addition to the title remains unknown, requiring further research to definitively describe its gameplay modifications or distinctive features.

Sonic 3 Cz

Sonic 3 Chaos Adventure By Jdpense