Ufo Robo Dangar (9/26/1986) is an arcade game with a release date of September 26th, 1986. Further research is needed to ascertain the developer and publisher.  This version's release date suggests an early iteration of the game, possibly preceding the versions released later in the year.  Gameplay is likely the same as other versions, featuring robotic combat against UFOs.

Ufo Robo Dangar (9/26/1986)

U.S. Navy (901012 Japan)