Green Flag. Press <M> to switch to manual rotation: then <arrow> keys (up, down, left right) and <a> and <z> keys to rotate the spheres in different directions. Try several keys at once! Press <M> again to return to automatic rotation.
3D Tutorial Studio: https://scratch.mit.edu/studios/5040029/ My Polyhedrons Studio: https://scratch.mit.edu/studios/5085215/ Lag: I added "wait 0 seconds" at the end of the "Input Keys ..." block to slow the speed down on my PC. You can remove this block if the project lags for you. 3D Rotation theory from Wikipedia: https://en.wikipedia.org/wiki/Rotation_matrix Key words: Animation Art Tutorial
