Idk who 'bam' is, but po will ONLY enter the hall cam if the music stops, meaning that as long as you ONLY press the button when you KNOW she is coming without music, she is beaten.
"bam" is an onomatopoeia, it's just an expression for "BAM, door open" 😅
Sometimes tho, I think the music turns off when Po is right next to the office, meaning you have very few seconds before her next move, which is right into the office.
