Duel is a 32X tech demo created by Acclaim in 1994. According to Mean Machines Sega, the british magazine where the first images of the game were published, Duel was planned for 32x, but it’s unlikely that any real development was even started. 32X’s 3D capabilities were in fact very poor, and many titles conceived for the ill-fated add-on were later released for Saturn. However, as long as we know, Duel was not one of them.
Here is the original article which appeared on Mega machines Sega 20:
In the video added below we can see how Duel was actually a CGI tech demo aimed to show Acclaim realistic character animation system using Acclaim’s Optical Motion Capture System.
It’s unclear if a game was ever planned out of it, however the technology was later used in some next-gen games (for example Acclaim’s Advance Technology Group is credited for Alien Trilogy’s full motion videos).
It seems the tech demo was the fruit of a deal between Acclaim and Sega (based on what is written on a italian mag scan).
If you have more info on this tech demo, please let us know!