Reimu isn't actually in any danger here, she just can't be bothered to escape at the moment.
"But you... are-aren't you... a damsel in distress?" "I'm a damsel. (struggles) I'm in distress. I can handle this. Have a nice day."
Match your timing with the meter and hit the buttons shown on screen!Darkness PunchWhat the heck...? That's really lame...NiceEnemy HPFinish!There's no way I'm going to hand over Reimu! ...I'll make you into rust spots on this Chestnut Extreme! Fwa ha ha ha!