I can’t believe I forgot this one.
One of the levels (5, I think?) was largely populated by ghouls, with standard flesh-eating names like Eyesnack and Kneenibble. Naturally you could talk to them instead of just fighting them. Jon Maiara (the same guy responsible for the Pac-Man homage) was writing the conversations for them, and included all sorts of things like the opportunity for you to make fun of Eyesnack’s name, to which he would respond by making fun of your name in return. You see the edge case, of course, right?
That’s right, part of our precious 640K was devoted to checking for whether the player’s name is also Eyesnack, in which case, in response to your mockery, the ghoul proclaims indignantly, “But your name same as mine!”
Maybe that will make you feel better about Judy falling into the lava.