Arrow keys. This is an online multiplayer project using cloud data, so it will be pretty pointless if you are the only one on this project. You can arrange times with other users if you like.
Apparently you can only access cloud data if you are a 'Scratcher', which means you contribute to the scratch website a lot. Please click the cross if you are leaving the common room otherwise it will not work. This is basically a test for an online game I am working on with a real objective. Please comment if there are any glitches or if you have suggestions. Click see inside if you want to see how I made it. If you use any scripts from this project, I would be grateful if you gave me credit.