At the risk of being a snob, why Rayman 3D? I rank it as one of the worst ways to play Rayman 2, it might not be quite the technical mess I heard Rayman DS was, but it's still a mess compared to the Dreamcast version it was derived from. I edited the RayWiki article with all my gripes and complaints after I'd ran through the game because it miffed me to see the game so badly represented on what should've been superior and more capable hardware.
tfw a port of a game rubs you the wrong way xD
In all seriousness, I don't fault you given there's not much else if you want to play legitimately, but I would strongly recommend seeing if you can try the Dreamcast version, it's much much better.