At one moment, to Batman's surprise, Robin exclaims: "Holey rusted metal, Batman!", then explaining: "The ground, it's all metal. It's full of holes. You know, holey" - a jokey reference to the TV show
"Batman" (1966) with
Adam West, where Robin would yell his trademark exclamations of surprise every once in a while: "Holy something-or-other, Batman!".
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