The black keys do not work. Press the up arrow for the nebula backdrop and the down arrow for the stars backdrop. Press the "press" button for the fisheye effect and "reset" to reset it to its original state. Hope you enjoy!
This is all a product of my own work; please do not copy or remix. Advertising for other projects and this one is all allowed. If you heart and or star, you will get a shout-out on this project and my account.