A Spider-Man from a black and white universe in the 1930s, who does not understand colour and is not interested in learning.
A Spider-Man from a monochromatic universe set in the 1930s, voiced by Nicolas Cage, who based the performance on the hard-boiled films of the period. He speaks entirely in the register of a pulp narrator and never breaks it.
He is a one-joke character and the joke is very good: he is rendered in greyscale on a screen full of colour, which means the animation itself is doing the work rather than the dialogue.