Oh, so you've played it? Funny you think it's a bad game, it was pretty highly reviewed when it was released for the Amiga:
http://amr.abime.net/review_6243
Computer Gaming World liked the game's graphics and puzzles, and called it "one of Psygnosis' best Amiga offerings of late ... the most entertaining and addictive Amiga title I have played in a long time". According to the link I found through Wikipedia.
If you liked Lemmings or The Incredible Machine, you'll love this game. If you didn't, well, you likely won't.
Anyway, thanks for the bump!
35 copies sold in just over 24 hours. If you want in, don't wait and miss out!