으하하 버튼은 모두 5개다!
효과음 1: https://scratch.mit.edu/projects/1282145849/ 효과음 2: https://scratch.mit.edu/projects/1282407018/ 효과음 3: https://scratch.mit.edu/projects/1282413403/ 효과음 4: https://scratch.mit.edu/projects/1298233790/
