This was one of those games I owned as a kid. Back then, I couldn't work out how to play it. I used to just wander around, trying to figure out what I was meant to do and stuff like that, albeit without much success.
However, over the past few days, I began to figure it out until I got what I thought was a quick system to finishing the game. I might follow this video up with an improved version once I've worked out where the best shortcuts are.