It's a countdown timer. It can't be easier to use. Just click the green flag and watch. Info display is moving a bit because it's stretched. I might fix it later. Also, the audio is one second behind, but it is better because the beat drop comes at exactly 30 seconds. It sounds better when it's synced like that.
Inspired by: https://www.youtube.com/watch?v=wOSGh_QKaOk I used to watch these types of videos back in 2013. I miss those times...