Arrow keys control the speed and position of the plane. Space changes the backdrop. Mouse controls the drift of the skywriting.
I happened to see a skywriting plane a few days ago! This project borrows lots of code from a few of my previous projects, including the Dot Matrix Clock, Air Attack, and the Snow Globe: https://scratch.mit.edu/projects/99670195/ https://scratch.mit.edu/projects/89150959/ https://scratch.mit.edu/projects/92831883/