Every kid growing up in the 80s had the mainstream stuff like Star Wars, G.I. Joe and He-Man. But what toys do you remember having that you liked but that weren't mainstream, and maybe even your friends didn't have any? I think I even still have most of this stuff at my parent's house, with all my G.I. Joes (including the USS Flagg), in my parent's crawlspace. Though, I have no idea what condition it's all in.
They used a lot of magnets and motorized parts, they were pretty cool.
I had the Bomber and a few of the smaller sets.
They had a bunch of cable and string systems that you can tether between pieces of furniture and the figures and some vehicles could zip back and forth.
I had a bunch of M.A.S.K like the 18-wheeler, Dually pick up, Jeep, Camaro, Gas Station base, Motorcycle and the classic Chevy(?), etc.