Ⓘⓝⓢⓣⓡⓤⓒⓣⓘⓞⓝⓢ: Click on the green word bubble to switch between slides. See the number and letter tabs? Click on each one to see the Scratchers that are moving on to the next level, then press space to close it. They are sorted by the first letter or number of their username. My name would go in the "C" tab, for example.
thanks to carrotbaxter10