Tap or press space. Click on the leaderboard button to see the leaderboard (you can only get on it if you're a scratcher). If you are experiencing lag, try using Turbowarp. Note: I don't know why, but the leaderboard is clearly broken and I'm like 99% sure that half of it isn't my fault. All of the cloud variables got reset to what they had been several days ago, which makes no sense.