点击绿旗，再点击“start”，不断点击黑块 Click on the green flag, then click on "start" and keep clicking on the black block 音乐是“天空之城” The music is "City of sky" v1.0 https://scratch.mit.edu/projects/324477819/
感谢QQ上的游戏“钢琴块2” Thank you for the game "Piano Block 2" on QQ.
