Not all that impressive for a game today, but this was basically unheard of in the 1980s and it explains how the movements were so smooth.
If you’ve played it a decent amount of times, you will recognize every movement in the live action video as it looks in the game.
Also, for those who don’t know what rotoscoping is: https://en.wikipedia.org/wiki/Rotoscoping
I was 17 or 18 when I first learned that.
It inspired me to buy a copy of Muybridge’s “Figure In Motion” (still on my shelf!) and scan it and use it as a base for animations for my earliest game prototypes.
Muybridge’s motion studies are amazing! I didn’t even make the connection, but I can see it now.