Space for space background, up arrow = doge background, and down arrow = void background.Also, find the easter egg. Hint: Check the DOge background. Press space at beginning to make start and end to go again, and you can spam sounds/music just for fun ;) To get out of the special page press down arrow.
Dat song I used "NGYU" stands for the song in short term https://www.youtube.com/watch?v=dQw4w9WgXcQ