Ven you are faced with a room full of eye shattering wallpaper zere is one secret answer:
First you must assess how much of ze paper you wish to remove and tape off vat you want to keep (we won't judge).
Next, travel to a local farm. Pick about five of the meanest looking feral cats and stuff them all into a single carrier.
Zen place them in the room with ze atrocious wallpaper, flip on some Barry Manilow and leave the cats to it for a few hours.
You should come back to find zis and no paper left on ze walls.
*Note you may be missing any curtains, furniture or anything else you left in the bathroom with the cats. Call for the $1,000 trapping feral cats fee to get them out of your bathroom.