I remember this
I remember I got a game like this about 7 or 8 years ago in a prize pack for winning the 'Most Books Read' award for an MS readathon.
Although mine was a square with a set of pieces that fit in it, and after about 4-5 times of putting it together I knew exactly where everything went, so the novelty soon wore of.
This game is a great concept, and timeless classic.
My only real comment is the menus didnt really fit the basic and puzzle-like gameplay, they came across as if they werent built with the game in mind, just built then the game was built for it. They seemed if anything a little unprofessional for the professional simplistic graphics in-game.
Other than that I see this as a game that could be played for many years to come, with this many levels it's always going to live on.