Well, I know that some games were designed for the Voodoo 1, and had trouble running on any other cards. The 3dfx edition of Mechwarrior 2, for example. It's POSSIBLE to run it on other setups, but without messing with it, only a Voodoo 1 will play it.
You have to keep in mind that it was one of the VERY first 3D cards, so there's no standard to code for. I don't know for certain, but I would think that there would be a few games like that.