Jenovi’s Retro Impressions just posted a follow-up video to one of the most interesting aspects of his Analog Controller Video: The planned expansion modules for the Sega 3D control pad.
Some of the expansions such as motion control units planned were a bit ambitious for the time, while other things like memory card support made more sense. While many of Sega’s ideas for this controller expansion were eventually integrated into the Dreamcast, it was fun to imagine what these expansions would have been like.
While you don’t need to watch the Analog Controller video to understand this one, in my opinion, it’s a fun watch as well:
