Convenient Escape Boat: While running from the Maori, the heroes find a couple of the unused pirogues on the shore and hastily make their escape to the convenient European ship seen nearby.
Wally West, the then-current Flash, beat Superman by a slim margin in the first Post-Crisis race between the two, on the basis that Supes is unused to running much as compared to the easier flying option, while that's what Flash does all the time.
Another Running Gag centered around "Grand Metropolis"; they uploaded six versions of the song ("Demo", "Alpha Mix", "Original Mix", "Alternate Mix", "Unused", and "Unused Demo") that were completely unaltered, then made a seventh that actually was.