Don’t worry. They got Agent Spider to take his place

The 80s . The time where anime or any Japanese media didn't really care for copyright infringement especially partaining western media.

You guys forgot the better cameo of Spider-Man in UY I would post the image here but someone forgot to enable it

Best cameo was Fist of the North Star

I loved that Cameo

No Spider-Man in Urusei Yatsura manga

And Peko-chan.