This is another version of Gekirindan, with the 'O' suggesting a different region than the 'J' version. The gameplay would be essentially the same as the 2.3J version but might have variations in graphics, sound, or even gameplay mechanics. The game's action-oriented nature and release in 1995 are implied by the title and release date.  The developer and precise gameplay details remain unknown without additional information.

Gekirindan (Ver 2.3O 1995/09/21)

Gee Bee