Here’s a draft write-up for using Action Replay codes with Fire Emblem: Shin Monshou no Nazo (Fire Emblem: New Mystery of the Emblem) . Introduction Fire Emblem: Shin Monshou no Nazo (known in the West as Fire Emblem: New Mystery of the Emblem ) is the 2010 DS remake of Fire Emblem: Mystery of the Emblem , originally released for the Super Famicom. For players looking to experiment beyond normal gameplay—whether to test difficulty hacks, recover from a softlock, or just have some fun—Action Replay codes offer a powerful way to modify the game.
For a complete code database, check resources like , CodeTwink , or dedicated Fire Emblem hacking forums.