This is only just a title screen, and there actually IS A GAME!! Edit : Yeah! There is a game, just not after you say no. Edit: Already A BUG??? Yes, there is one. Don't quit the game on the choose ball screen. If you come back, the "Back" button will be on the main menu, as well as the choose ball menu. To fix it, just go into the choose ball menu, and click the back button. That should fix it. The problem is not with my code, it's with Scratch. :(
