P.S. 321 Family Tech Night 2015 Marble Run Help us create a Marble Run machine! The only rule? The marble must start at the top and exit at the bottom middle of the screen. Step 1. Remix this project. (See inside > Remix) Step 2. Draw an interesting background. Step 3. Make the marble do something interesting. Step 4. Share to this Studio: http://scratch.mit.edu/studios/979850/