It's C64 time. I've found this game in the .D64 image of a floppy of mine that I transferred to PC a long time ago. The game was found in one of those pirate compilations that you could buy at the local newsagents at a low price (at least here). These pirated games were usually hacked to have their titles changed, copyright information removed and text translated, but other than that it was like playing the original. Also, I doubt we had software copyright laws at the time, so it could've been perfectly legal.
However, this one was renamed "Yado", here's a screenshot:
The text displayed in the console was probably left untouched. What you had to do was to explore the insides of a building made of many rooms, retrieve some secret documents and bring them to the floor, where a chopper would catch you. Also, there were energy barriers that could be gone through with an energy shield charged by running on some bubbles of the same colour of the barrier. Your character could slash and kick the enemies (dogs, thugs and other swordmen) but the hard part was figuring the maze of the building. Yesterday I made a map and finished the game in an hour or so, no great fuss, but it was fun and now I'd love to know the original title of this game. Does anybody know?