|“Nobody turns my Walliper into a ghost!”|
Wallipers are yak-like creatures that lives in different parts of Ninjago. After Morro possessed Lloyd, the Ninja set off to Stiix by riding four the Wallipers Misako brought them. At night, the group was ambushed by Wrayth, who turned Cole's Walliper into a ghost walliper. Shortly after, the Ninja traveled up the Wailing Alps, where they found another Walliper. Jay and Kai briefly quarreled over whether it was a yak, goat, or cow.
Kai wakes up to find a walliper licking his face and eating his noodles. The Ninja rode their wallipers that to Stiix until Wrayth encountered the Ninja. Wrayth also turned Cole's Walliper into a ghost before Jay shooed them off.
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.
- Wallipers are based on yaks.
- In "Ghost Story," Cole's Walliper turned into a ghost. This may foreshadow the event where Cole himself turns into a ghost in "The Temple on Haunted Hill."
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