Press the three lines or three dots in the corner to open the menu. You can press See inside to check out how the code works. Also, you can press the grey dot on the bottom to go to the next slide in the slideshow thingamabob. The menu has three options - Music, where you can turn on and off the music, Leave, where you just, you know, leave, and then auto-animation. You can add different buttons in your own scratch project by copying the code in this one and putting the menu sprite in your backpack
I just did this stuff cause why not all code by me.