Rewatch or press the green flag twice to get it synced. This is Minty's friend with Birdie and Dee Dee (Birdie and Dee Dee are married Blue Birds). If the music is quieter in the end tell me. It's a problem with Minty and Brownie.
Minty: https://scratch.mit.edu/projects/1246805980/ Brownie: you're here. Dee Dee: Not made Birdie: Not made
