The Criss Cross seemed to change a bit from model year to model year, but it should be a pretty versatile bike, capable of being equipped a number of different ways -- flat bars, or drops, etc. etc. One thing that was pretty unusual was that in '93 (I think that was the only year) the rear derailleur was the funky SunTour S-1, which mounted on the chain stay ahead of the rear dropout. It faced backwards, and probably would have made rear wheel removal awkward if not for a large chain holder mounted to the dropout (if that was broken or removed, good luck). The Criss Cross may have been the only production bike anywhere to use it. The S-1 derailleur mounted to a special braze-on boss on the chain stay, but luckily the dropout still had a traditional derailleur hanger -- so if someone has that version and wants to (or needs to) replace the derailleur, it would be possible to replace it with a "normal" one. However, something would need to be rigged to serve as a cable housing stop, since there isn't one. Clamp-on stops are available on the vintage market.

By the way, the SunTour S-1 was like a modern version of the very cool French Nivex derailleur from 1938 -- one of the first parallelogram type derailleurs. I had some info about it (as well as a bit about the S-1) on The Retrogrouch Blog. The Retrogrouch: Nivex: The Grandfather of Parallelogram Derailleurs