I tried to make physics in scratch, and this is my best attempt so far. Click to create rocks that bounce off the edges! Color meaning (color coded so that code actually works): Blue: upper edge Green: side of edge Red: lower edge. You might've also seen a variable called "Mouseaction". This variable changes what your mouse does. 1 = create rocks 2 = click + drag rocks 3 = delete rocks. I hope you enjoy throwing rocks around in this test project!