Here's why:
* It undermines the fun of the game: Part of the excitement of Pokémon is the thrill of encountering rare Pokémon, like Shinies, through legitimate gameplay. Using cheats removes that element of chance and discovery.
* It can lead to unintended consequences: Modifying your game files can potentially corrupt your save data or lead to other glitches.
* It's against the rules: Most online multiplayer communities prohibit the use of cheats, so you might face restrictions if you use a Shiny obtained this way.
Instead of using Action Replay, I suggest exploring legitimate ways to increase your chances of finding a Shiny Jirachi:
* Masuda Method: This involves breeding Pokémon from different regions to increase the chance of a Shiny encounter.
* Shiny Charm: This item, obtainable in various games, boosts the Shiny rate.
* Chain fishing/battling: By consecutively catching or battling the same Pokémon without breaking the chain, the Shiny rate increases.
Remember, the joy of playing Pokémon comes from the journey, the challenges, and the discoveries you make along the way. Embrace the spirit of the game and enjoy the thrill of earning your Shiny Pokémon through fair means!