Use the arrow keys to control the orange block. Use the W-A-S-D keys to control the purple block.
this is from the scratch ed team i improved it by making it far smoother and adding the code to slow down one of the blocks when X is clicked and Z to slow down the other one and they can both move at the same time and making scratch on a sort of loop plain added edges to make it look like theirs sort of portals on each ends