I can't remember what its called but I think it came out in the late 90s or early 2000s, it was a top down game where you played as what I think was a human in some kind of room where certain parts of the floor are certain colours but you can only go on to other colours with a brick that has both colours in what I think was a diagonal line, and you had to collect something that I think opened a door. It was on pc but thats all I can remember, please help me, I've been wanting to replay the game for ages but I can't remember it and its killing me!!