This Pokémon hack is called Pokémon Crystal Shards, and it is based on the Pokémon Emerald ROM. Those who adore Pokémon Gold/Silver/Crystal Version for Game Boy Color are the target audience for this hack. The creator of this hack, Kike-Scott, is also a fan of those games, which is why he made the decision to port the story of Pokémon Crystal over to Nintendo GBA. Johto and Kanto are the two regions that are playable in Pokémon Crystal Shards.
