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According to programmer Noelie Alito: 'Zorfon Patrol was essentially a bootleg copy for a young relative in Potomac, but I didn’t think it was a risk of general piracy due to the relative difficulty of making the carts (as opposed to tape-based games). I’m not sure if that version of Moon Patrol used an anti-piracy trick, which involved the code attempting to write over itself, effectively a NOP on the PROM version. The cartridges were relatively hard to pirate compared to other contemporary formats of software, so the risk of personal bootlegs was minimal. The cartridges were, in effect, their own dongles.'