The game hadn't been in development long before CES promo tape was ready, and Sunsoft couldn't show much more than the screen shot and cut scenes. It did not stop the studio from lifting the hyperbolic. It claimed that this was the first game that included "movie footage and interactive graphics technology", and that this would be the "most amazing lively" home console game you've ever seen. No one would confuse this to the 1
The developer reportedly missed the license after the game had essentially left the movie plot. Instead of Sarah Connor fleeing the T-800 with the help of Kyle Reese, it had Reese combat terminators in a Skynet-controlled future.
You may know the rest of the story. Sunsoft's big movie recording at that time would be Batman and the first Terminator game was Bethesda's 1990 first person PC title. The first console games did not exceed before 1992, well after T2: Doomsday hits theaters. Still, it is interesting to imagine what would have happened if Sunsoft had been granted permission. While the NES release may not have blown anyone away ( Silius was not a timeless classic), it may have set a different tone to Terminator games ahead.