To create your background, you can upload several images: one image per background layer.
The 1
st image will be the most behind layer, the last will be the frontmost.
Each layer will move independently in-game to give a
parallax effect.
For example, Mario Circuit 1 has 2 background layers:
And Figure 8 Circuit has 3:
To proceed, simply upload as many images as you want in the form below.
You can specify up to 5 layers.