It was DC Comics Presents #34 when Earth-One's Superman teamed up alongside the Marvel Family of the Captain, Mary and Junior against a trio of terror in the form of Earth-One's Mister Mxyzptlk, Earth-Two's Mister Mind, and Earth-S' King Kull. As if that wasn't enough dimension-hopping defenders and deviants, one more was thrown into the mix. Hoppy the Marvel Bunny had been a regular feature in golden age Fawcett's Funny Animals and his own self-titled adventure. Deriving his powers from the same source, or one somewhat similar, to his distant human cousins, Hoppy pretty much carried on by himself during the 1940s. Only interacting with the other Marvels on various advertisements, it seemed his 1981 appearance was his first alongside the Big Blue Cheese and his brethren. Actually, that is not entirely true. When an errant asteroid heads off course threatening, Mary Marvel heads up into a cloud of such mini-planetoids and finds herself in the midst of a battle between the cat-people of Vesta and the dog-people of Juno. How does she resolve this?
With brother Billy Batson's help, they recruit Marvel Bunny from his Animalville dimension for a one-time tale in the Marvel Family comic. How they found out about the Marvel Bunny to begin with is left unexplained, as is how Billy managed to cross dimensions without becoming Cap. Nevertheless, a bond was formed that endured over the decades when it was rekindled years later. However, Hoppy revealed his dirty little secret at the end of this tale... his favorite comicbook superhero wasn't Captain Marvel... but rather Superman himself! As for the Man of Steel, he would that next year meet another heroic hare in the form of Captain Carrot from Earth-C. Who, by coincidence, was the writer of a comicbook featuring the Big Red S in the form of Supersquirrel of Earth-C minus.