No keys or anything like that, but it is cool that Sam can stay on the line. You can watch him dance too. So if you want you could take a look at the code if you wee trying to figure out how to make your sprite stay on a line too.
Oh, and the variable at the top does change the guiding If you like the project, give it a heart❤️, star⭐️, and you can go to my profile and follow me! Here is the link to my profile: https://scratch.mit.edu/users/lomax14/