Mines was probably an old Amstrad CPC game. Animal Vegetable Mineral, anyone?
Not sure if that was my first game, but I remember that game and a bunch of others for the amstrad which were awesome:
Batman, Harrier Attack, Bridge-It, Roland on the Ropes, some sort of Mummy game, being chased about tombs in the pyramids... and Time Man One.. ah they bring back some good memories
)