I FINALLY FINISHED (after like a year of procrastinating)! I am so sorry. Since I am still getting used to Scratch 3.0, I cannot put the backdrop into the actual sprite. I did, however, code it to change to Part22Backdrop when it is my turn. All you have to do is change it back to the normal backdrop, or others' backdrops, to get rid of it. Thanks!
Thanks to @TwinkleTheCat for the Map. I did all of the animation. You can tell the old parts from the new... 102 frames...