A Walliper is a creature in LEGO Ninjago: Masters of Spinjitzu.
The Ninja were riding their wallipers to Stiix until Wraythen countered the Ninja. Wrayth also turned Cole's Walliper into a ghost.
While climbing up the Wailing Alps, the Ninja encountered a Walliper. Jay however, believed it to be a goat, though after Kai claimed it was a yak, the Master of Lightning changed his opinion to it being a cow.