We saw with Horizon that it was mostly just an excuse for Silver Age wackiness and new costumes/gadgets, but most of the Horizon cast would never be...
That one always confused me because the Batman/Spider-Man crossovers were not multiverse crossover type stories. They were set in a world where they...
I guess this would be the equivalent of Marvel's close to long decade of mediocrity in their cartoons (just compare X-Men '97 to Avengers Assemble)
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Cliff Steele's body was destroyed in a race car accident. The Chief aka Niles Caulder placed Cliff's brain into a robot body and he became the mechanical marvel Robotman!