Pokémon Black and White are a new game for the Nintendo DS. To play the game, you need to create a save file. To delete a save file, follow these steps:

  1. Open the Nintendo DSi/DSi XL system’s main menu and select System Settings.
  2. Scroll down to the bottom of the screen and select Save & Exit.
  3. Close the system’s main menu and reopen it to continue playing the game.
  4. When you finish playing Pokémon Black and White, your save file will be deleted automatically.