It should have been between '87 and '93. It was a common practice for supermarket electronic isles to let you test home computers for hours without asking you to leave. At that time I didn't know it, but I was looking at a Builder Dash style game play with the most beautiful graphics I've ever seen. In fact it was the first time ever I saw such game style.
It had a peculiarity, the enemies were dragons... probably Chinese dragons that moved across the screen in an Atari's Centipede like manner. The player was digging, collecting items and blocking these dragons path pushing rocks, the usual. I remember the player was wearing a hat, but I can't remember if it was a jungle hunter, a spelunker or a conical.
And... that's it. My parents finished shopping and we had to leave. Up to this day I've been searching between builder dash clones without success. It doesn't help I can't identify the computer platform either. Could it have been an Amiga? I don't know.
Anyone recalls something like I'm describing? Any help is appreciated.