Captain Jigglypuff
Leader of the Jigglypuff Army
I used Action Replay in the Pokémon games during the DS era only to have Shinies, quicker Egg hatching, unlimited Master Balls, and in the Gen 4 games the ability to steal in game trainers Pokémon which I mostly did to get the rarer Pokémon. I never entered any online competitions with these Pokémon.