I go through Slayers every couple of years. It’s hard to call it “good”, but it’s by far my favorite anime.
It’s the only anime I’ve ever seen that really captures the spirit of a D&D player. The characters successfully beat the BBEG in every season, but act like dysfunctional clowns the whole way through.
When Gearbox got the rights, I was sure Duke was going to show up in Borderlands, because thats basically the perfect place to put a relic of a character like that.
Have him do the 80s macho-man thing as a side character, and then contrast how much things have changed in the last 30 years for comedy.
There is no story that you could tell with Duke as the main character that wouldn’t feel like it was a script written in 1998 just rotting in a warehouse somewhere.