The Game Gear game Panzer Dragoon Mini was never released outside of Japan. It was released in Japan in 1996. Panzer Dragoon Mini is essentially a spin-off game, rather than a part of the main series: it has simple 8-bit rail shooter gameplay, cartoon-like visuals (rather than the traditional Panzer Dragoon style), enemy designs and background tunes borrowed from the first Panzer Dragoon game and Panzer Dragoon II Zwei. It features no storyline.
One version of Panzer Dragoon Mini was released, the NTSC-J version.
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