I used to play this on my Commodore 64 when I was a kid. I have many fond memories, and remembered most of the solutions even 30 years later! Most of the game is rewarding, although I find the mazes and the ending to be a little "out there." This is definitely one of my all-time favorite games because there are a lot of rewarding puzzles and even some humor mixed in. Remember to save often because treasures can be easily lost or broken.
Plugh!