Follow these steps to delete a saved game on the Nintendo Console.

Wii

  1. Start the Wii console. Once the system starts, you will be taken to the Channel Page.
  2. Open the System Menu. There you will see a saved item for each time you've saved a game.
  3. Find the game you want to delete. Be sure to check the time on each save to make sure that you do not delete the wrong one.
  4. Once you've located the proper save, select it with the A button on the Wiimote. You will then see an option to Copy, Move, or Delete.
  5. Select Delete to delete that save.
Wii U
  1. Select System Settings from the Wii U Menu. 
  2. Scroll to the Data Management and press the A Button. 
  3. Select the application that has the data you wish to delete and press the A Button.
  4. Select the data from within the application and press the A Button. If you wish to delete everything, press the Y Button to Delete All.