Welcome to the circuit editor in complete mode. With this mode, you will be able to create a circuit from A to Z.

The first step is to provide an image of the circuit seen from above. That image is what will be used to render the circuit in the game.
For example, here is the image of Mario Circuit 1 : Show

To draw the circuit image, you can use a drawing software like Paint or Photoshop. You can also retrieve an image on the internet (for example on mariouniverse.com/maps).