https://scratch.mit.edu/projects/239718131/

I adapted the script for my moving words from a tutorial, but I don't really see an option to change the speed of their movement. It would have to be accessible for the player to adjust it as well. Would love some pointers! Thanks!

You will need to share your project for others to see it and help.

I posted a link to it. Here it is again. https://scratch.mit.edu/projects/239718131/

Also, a blue line keeps appearing in the middle of the screen once the words start moving…any ideas how to prevent that?

In each of the word sprites, replace:

move (3) steps

With:

move (scrollX) steps

The scrollX variable is already visible on the screen. Right-click it and change it to a slider type. Right click it again and set the slider's min and max values. The player can then use that slider to control the speed of movement.

Thank you, that's exactly what I was looking for!