(Yay! New Project!) There is a how to play button in the menu. It has all the instructions you need.
Thanks YMCA Kelvin Sir for teaching me the basics of scratch to make this project. Sure, this is not how it was supposed to work but I didn't attend 2 lessons. I notice bugs in this game (e.g. getting 80 instead of 20) so I hope someone can remix this and fix them! So please fix them for me! :)