The controller features an eight-button arrangement and can be used in both wireless and wired configurations. Two adapters are included – a Saturn one and a USB one (for use on systems other than Saturn).
Before you get too excited, it's worth noting that this is "subject to licensor approval", and we don't have a solid release date for it as yet.
If it does come to market, this should be a very interesting product for Saturn fans, given the high volume of 2D fighters which exist on the console.
Also spotted in the same images from the Gamescom show floor is a 2.4G wireless Dreamcast controller with a six-button face layout, which would make it ideal for fighting games.