I should also consider including a section on similar ROM hacks to provide context. For example, other creature-type swaps like Pokémon Cats or Pokémon Dogs. Comparing them to Squirrels could highlight what makes this hack unique, perhaps in art style or the number of species replaced.

Another point: gameplay balance. If all Pokémon are replaced with squirrels, but their types and moves stay the same, the game plays mostly as normal, but with visual changes. However, if the hack changes types and moves for humor, the gameplay diverges more. Need to check whether the Squirrels hack does either.

Finally, a conclusion that summarizes the significance of the Squirrels hack in the broader context of ROM hacking culture, emphasizing creativity and the passion of the community for reimagining classic games.