Do what the scratch cat says. For example: Whirlsize or color or colorsize or Whirlsizecolor... The more things you enter the longer it takes... I put one easter egg hidden I added something so I can see the username of everyone who has seen this project. This project is the tutorial how: https://scratch.mit.edu/projects/757563972/ If you do all three it is kind of like a representation of sound.
Everything by @pinkchicken42 You could use the code for something like a save code, except WAY more complicated. If you do, please give credit, for at least the basics or idea.