ONLINE MULTIPLAYER (if you didn't see it already, to use online with other people, you need to have a scratch account as a certified "scratcher" meaning that your account has multiple projects shared and constructive comments. You can tell by looking right under your username in the profile page. You will probably have gotten a notification asking if you wanted to become a scratcher, otherwise you can't play online with other people) PRO TIP: If you don't have anyone else to join this, and no other devices, you can duplicate the tab, it doesn't matter if you have the same account, It will still count it as multiple people this took a really long time