This is a copyable loading screen- You can remix it for use in your own games. Just a little bit of coding to make it. Redesign the sprites however you want, but be warned: The buttons are cloned, so use a WHEN I START AS A CLONE block to code when clicked. You could distinguish between them by, say, costume name. Also, there are directions inside to change the effects.
I used a YouTube tutorial to make this- there are lots of good tips out there!