The reason Amy freezes when metal sings is because after he stops she would spam left inputs. Some with metal when Amy sings (her poses may be inaccurate bc the wiki crashed) Double-click flag so that the music syncs! You can replace characters by going into their costumes and replacing the poses with your characters' poses. You can also change some of the animation code if you want it to look different. You can also change the note skin of each arrow set now (note) I didn't think that anyone was doing this, so I did it myself and I'm proud of how it turned out!