Alien Avenger - LEGO set #6975-1 (Building Sets > Space > UFO)
6975: Alien Avenger - Back of the Box Builds
Found my old UFO set: 6975 in the attic. Forgot how awesome this set was! It was purchased in Germany sometime around the year 1998 and is still in perfect condition : r/lego
System (6975)LEGO Instructions Manual ONLY UFO 1997 | eBay