The FM Towns Marty, a.k.a. "FM Towns", a.k.a. "FM Marty Towns". A brief glance at this system, and you might mistake it for a white Turbo Duo, but on closer inspection, you'll notice that the slot on the front isn't for a HuCard, but instead for an actual 3.5" floppy.
The Fujitsu Company decided to make an attempt to penetrate the console games market by taking their popular FM TOWNS line of computers, and adding in some special components to create a stand alone video game console. The plan was for the software designed for the FM TOWNS computers to be modified slightly so that the games would work on both the computer and the console. The FM Towns Marty has the distinction of being the first 32-bit video game console.
This system was compatible with most of the Fujitsu line of computers, so it would use the 3.5" slot to play many of these games. The 32-bit system's CD reader was used mainly to play games made specifically for this system, although some computer software at the time also came in CD format.
The system was released in 1991 with a 386 processor that was later upgraded to a 486 (The FM Towns Marty 2). The first version is much rarer, but more limited. Since the system can play games designed for the FM Towns PC, it's library is larger then what you might expect. It came with a two button controller and had a port for a second controller as well. A mouse and keyboard were also available to play compatible PC games.
If ever there was a system made to play "hentai" games, this was it. While it may not have been it's main purpose, there were many adult anime games available. Fujitsu supported the units for many years, and some third party games supported the systems as late as 1999. Fujitsu wisely discontinued the console line with the arrival of the more powerful 32bit Sony Playstation and Sega Saturn.