A nice little platformer with gameplay somewhat remeniscent of that of Burgertime & Mappy. It was brought out on the MSX platform in Japan and also had an Arcade version out in Japan.
In this clip I show the MSX version and the Arcade version and talk a little about the differences between the two and try to play the game as well.
Taito released this in 1984.
Space Dungeon is one of these shooters that has two joysticks to control the game. The left one for movement and the right one for firing. It is very similar to Robotron 2084 or SmashTV.
Well worth checking out yet the only home port of it in existence is on the 5200.