This is a mod that adds a D-Pad to the HUD for Majora's Mask: Recompiled. The D-Pad lets you activate the transformation masks and the Ocarina of Time without needing to bind them to the C buttons.
If you want to use the update script, copy an arbitrary number of images you would like to use to minegrub/backgrounds/. You can find some options in background_options/ but you can also use your own ...