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.
WARNING! THE 2ND PHASE ENDED UP BEING WAY SCARY-ER THAN INTENDED. VIEW AT YOUR OWN RISK. @sunny18111 for riv static idles. I just animated it