Thank your @ggenije, for the original project. UPDATE 2023, @ggenije unshared their project, and moved it here: https://scratch.mit.edu/projects/843757127/ I just wanted to see what it would take to remix @ggenije's excellent project using no Pen, and use costumes instead. Turns out, it didn't take much... Although I'm afraid I have still butchered @ggenije's code quite a bit ;)
@ggenije's original instructions: Free to use Click anywhere on screen to give a velocity to your ball. **NOT IN THIS REMIX** [Space] to enter billiard mode [N] to create new ball [M] to create big ball