I loaded this up recently on Genesis and it actually blew my mind how smooth the animations were for the 'parkour', to find out it was all mo-capped and faithfully recreated into pixels. I had no idea people were doing this in the 80's.
This book [1], which is the creator's diaries from the time annotated with lots of memoir-ish details, is really really good and talks about how the motion capture came to be at length. It's also just a very enjoyable book, not to mention very physically beautiful.
