There are no cheat codes for Mario Kart DS. Nintendo didn't include any, and Action Replay codes are unstable and often corrupt saves.
| Style | Character | Kart | Why |
|---|---|---|---|
| Snaking/Time Trial | Dry Bones / R.O.B. | Standard DB / Blue Falcon | Best handling + mini-turbo |
| Online/Vs (Items) | Yoshi / Toad | Egg 1 / Standard TD | Acceleration + mini-turbo recovery |
| Heavy/Defensive | Bowser / DK | Tyrant / Wildlife | Weight + speed, knock others |
Official Nintendo WFC dead. Wiimmfi restores online. Requires DNS patch (auto-patcher on SD card). Active community, tournaments, ghost trading.
Bottom Line: Mario Kart DS is pure skill. The satisfaction of beating 1:15 on Rainbow Road legitimately > any cheat.