Another 64k version of Flicky, this release is distinguished by the 'Set 2' identifier, implying it’s a different version of the 64k/System 1 release. It likely features similar gameplay to other Flicky iterations. System 1 is the earlier Sega system. The 315-5051 is likely an internal Sega identifier.  Sega developed and published this version for arcade.

Flicky (64k Version, System 1, 315-5051, set 2)

Flicky (128k Version, System 2, not encrypted, alt graphics)