So this Spongebob game...There's only 2 copies on eBay (UK) right now. I can see this definitely becoming rare in the future. I never see it on lists of rare Wii U
Family Game Bundles for Wii U | Groupon Goods
Spongebob on Wii U 3 - YouTube
Spongebob on Wii U - YouTube
Amazon.com: SpongeBob SquarePants: The Creature from the Krusty Krab for Nintendo Wii : Video Games
Spongebob Atlantis Squarepantis Nintendo Wii PAL *Complete* Wii U Compatible | eBay
SpongeBob SquarePants: Plankton's Robotic Revenge (Nintendo Wii U, 2013) for sale online | eBay
User manual Nintendo SpongeBob Squarepants - Planktons Robotic Revenge (Wii U) (English - 8 pages)
SpongeBob SquarePants: Plankton's Robotic Revenge - Nintendo Wii U 47875767546 | eBay