Many PC players use the Cemu Wii U Emulator to play the game. This allows for higher resolutions and community-made shaders, though you must dump the files from your own legally owned disc. Key Features of the Wii U Edition
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If you previously purchased the game digitally, you can still re-download it from your "Account Activity" or "Downloadable Content" section on the Wii U console. Many PC players use the Cemu Wii U Emulator to play the game