Do you remember this game?
As I child, I owned it; a birthday gift, as I recall.
It's a painfully simply, one-track game, but I remember it's attraction being the illustrations. As you can see, the games uses only Golden Age art, even though it was produced in the 1970s.
I remember studying the Joker's hair, in particular, and copy the shading technique to give hair weight and texture. I also remember being displeased by the coloring errors on Two-Face. I guess I'm an inker, at heart.