I assume when people look at the classic mode 20 leaderboards, people see the sub 1 times and assume they are fake and impossible. Times like those are possible though, and there is a trick to get times like that. This is a very glitchy game and it was built very poorly, which means the game can be very laggy. When the game lags and you do classic mode, the timer slows down tremendously. You can do this by running every app in your phone or leaving it out in the sun, basically anything to slow down your phone works. By doing this, you are able to get crazy times. The video down below show my 0.78 classic 20 time and my 2.58 classic 50 time showing how it can get very laggy. I left my phone out in the sun and it got very hot and lagged, which is how I was able to get such low times. This is how those times are achieved. Hopefully this helped anyone out that was curious on how to do this glitch. Video of my lagged times: