Tiny Cartridge tells the story of an unsettling bootleg edition of the game Pokémon:

After selecting your starter, if you looked at your Pokémon, you had in addition to Bulbasaur, Charmander, or Squirtle another Pokémon — "GHOST". It had one attack — "Curse". …

When the move "Curse" was used in battle, the screen would cut to black. The cry of the defending Pokémon would be heard, but it was distorted, played at a much lower pitch than normal. The battle screen would then reappear, and the defending Pokémon would be gone.

You could also select Curse [on a rival Trainer]. If you did, upon returning to the overworld, the trainer's sprite would be gone. After leaving and reentering the area, the spot that the trainer had been would be replaced with a tombstone…

That's not all, either. The author didn't just leave it at that, but considered the implications for the game's narrative. [Tiny Cartridge via @brandonnn]