Ensure that you installed the game update files. Large multiplayer-centric games on the Wii U often freeze on modern firmware if missing their final title updates.

Check your SD card file structure. The files inside the install/Call of Duty Ghosts/ folder must not be zipped or inside secondary subfolders.

For a step-by-step visual on the installation process and storage management: 07:04

Choose to install the game to (preferred) or NAND (System Memory).

Beyond legality, ROM installation carries technical risks. Incorrectly formatted files can brick the Wii U’s NAND. Using a low-quality USB drive can cause game stuttering or data corruption. Online multiplayer for Call of Duty: Ghosts on Wii U is largely defunct, but attempting to go online with a pirated copy could lead to a console ban from Nintendo Network. Finally, ROM sites are rife with malware disguised as game files.

: Your console must be running custom firmware such as Aroma or Tiramisu .

: The homebrew application used to actually install the game files onto your Wii U menu.

Installing on a modded Wii U requires specific file formats and tools to move the game from your computer to the console's internal storage or an external hard drive. Because this title was a physical release, finding it in the standard "WUP" format used by many homebrew tools can be rare, often requiring users to dump their own discs or find specific backups. Prerequisites for Installation

You have the ROM. You have the CFW. Should you actually play it?