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How to Enter Cheat Codes on Nintendo DS: Action Replay, Flashcards & CFW

The Nintendo DS has no built-in cheat menu. You need a hardware device or flashcart.

Methods

MethodHardware NeededHow It WorksCost
Action Replay DS/DSi Cartridge (looks like game cart) Boot AR cart → Select game → Enable codes → "Start Game" → Swap for retail cart (prompted) or boot from AR $30–$60 (discontinued)
R4 / Ace3ds / R4i Gold / Supercard DSTWO Flashcart + microSD Boot flashcart menu → Cheats (database or .cht/.xml) → Launch ROM / Retail cart $15–$40
Twilight Menu++ (CFW) DSi/3DS with Unlaunch/HiyaCFW / Luma3DS Homebrew launcher → Twilight Menu++ → Per-game cheat menu (Action Replay format) Free (SD card only)
NitroHax / NitroHax3DS Flashcart or CFW Homebrew app: loads .xml cheat DB, patches RAM live for retail cart Free

Step-by-Step (R4 Flashcart – Most Common)

  1. Format microSD to FAT32.
  2. Copy R4 Kernel (Wood, YSMenu, or official) to microSD root.
  3. Create _r4_cheats.xml or cheats.dat (download from GBAtemp Cheat DB or Neoseeker).
  4. Insert microSD → R4 → DS.
  5. Boot R4 → Menu → Cheats → Select game → Toggle codes → Start Game.

Warnings

  • Save Corruption: Bad codes crash game → corrupt save. Backup saves (Checkpoint on 3DS, savemgr on DSi).
  • Online Bans: Nintendo WFC dead; but Wiimmfi (Mario Kart DS, Pokémon) bans cheaters.
  • Flashcart Quality: Avoid "R4i SDHC" clones with timebombs. Use R4i Gold 3DS Plus (RTS), Ace3DS X, Supercard DSTWO Plus.
  • Legal: Only use with games you own.

Best Modern Route

3DS/2DS with Luma3DS + Twilight Menu++. Plays DS/3DS/GBA/NES/SNES, cheat menu built-in, no extra hardware, free. Follow 3ds.hacks.guide.

Nintendo DS
Nintendo DS

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