Last Hudson game I played was "Elemental Gimmick Gear", for Dreamcast. It's a very underrated action RPG. It's very fun, and you can find it for a great price these days.
I've heard reports that NEC's "Tube Sliders" was supposed to be the next F-Zero game, but the deal went to SEGA instead for F-Zero GX/AX. This is a good thing, in my opinion, because SEGA's work on F-Zero was absolutely AMAZING. Not only that, it's totally loaded with awesome SEGA butt-rock music, and that's bonus points in itself. Anyway... I believe I also heard that the Tube Sliders team instead programmed F-Zero: Maximum Velocity for the GBA; A team by the name of NDCube.