Pokemon Creepy Black (Gameboy Advance GBA)

The story begins with the discovery of a Pokémon named "Ghost" added to the usual line-up of Pokemon, which has the sprite of ghosts from the Lavender Town prior to obtaining the "sliph scope" item. Then its revealed that the mysterious Ghost Pokémon had an unusual ability.

It is also noted that if the player continued to use the "curse" ability, then the Pokémon trainer would disappear as well. The end of the game as being devoid of any other trainers or Pokémon and the story concludes with an unusual battle against a Ghost Pokémon who defeats the defenseless player by using the "curse" ability.