A strange little side quest
Grombi trivia break for Zombieland: Games resembling checkers were being played thousands of years ago; evidence of related games reaches back to around 1600 BC. Another piece of context lands nicely beside it: Midway's Gun Fight from 1975 was the first arcade video game to use a microprocessor. That history is one reason familiar mechanics can still feel new when they are recombined well.