This is absolutely true. One of my favorite arcade games from the 80's where I've spent countless hours and played it to death and I can't remember the name of it. To this day the quest to find it again continues. It's like an adventure or something.
You could try it here too, what do you remember about it? What country were you playing it in? What were the controls? Joystick, trackball, one giant button, several buttons? What year did you first play it? Any memories at all about what the gameplay was like or the overall quality of the graphics?
The other game I can't remember was contra/turrican like game with main character like a robot and you could go in all directions on a map. I remember there were egyptian motifs around levels and I vaguely remember that game had a name Phoenix or something similar. Same time period, same nondescript arcade cabinet. Both in Europe / Croatia.
