It did. I own it. Managed to snag it for $25 CIB off of eBay in 2006. I daren't imagine how pricey it is now.
I'd sure love a box for my copy of Saturn MMX4, too, but eh.
Fun fact! The Saturn version of X4 has looping music. I don't mean "stops and starts over where the PlayStation version does", I mean actual, seamless loops. (Well, my copy skips a little bit, particularly with Dr. Light's theme; might need resurfacing.) In addition, the fight with Eregion and the second theme for Frost Walrus have 2-3 seconds of additional audio added to the beginning of the track. Also, the second Sky Lagoon stage and both of Magma Dragoon's stages have warping backgrounds. Downside is that polygonal transparencies are mesh transparencies instead of actual transparencies - although this is limited to the searchlights in Sky Lagoon and Storm Owl's weapon for X, AFAIK, it's still kind of ugly. (Other transparencies work fine AFAIK - the water is still see-through and tinted blue, for instance.)