Puzznic is a puzzle video game originally released in arcades. The 'set 2' version implies this was a subsequent release or update compared to the initial release. Details on the original developer, its specific gameplay mechanics (likely involving puzzle-solving), and the reason for the 'set 2' distinction require more investigation.  Additional details about release dates or publishing companies are unavailable without further research.

Puzznic (version, set 2)

Puzznic (Italian version)