 Additionally, "Spawn/Batman" was released in 1994 as a companion to "The Dark Knight Returns", and, according to Miller, the series "All Star Batman & Robin, the Boy Wonder" can be considered as a prequel, as can the four issue story "".In 1994, this version of Batman appeared in the "" crossover event playing a small role.In March 2018, he appeared in a brief cameo in the sixth and final issue of the "" event.