Call Local Stores: Employees can check inventory system for nearby stores with stock and request a transfer.
Expand Search:eBay, Mercari, Facebook Marketplace, OfferUp, local retro game stores, conventions. Often cheaper than GameStop's used price ($30-$50 typical).
Digital Alternative: Not on Nintendo eShop (Wii Shop closed 2019). No legal digital version exists.
Persistence pays—this is a common enough title that copies circulate regularly.