how can I get clickwheel games back on my ipod

You need to have kept a copy in your library, and you need iTunes 12.6.5.3. iPod clickwheel games were also sold on a single download basis and the onus was on you to keep backups. iTunes 12.7 removed the ability to manage clickwheel games.

tt2

Windows or Mac? Rolling back to an older build of iTunes generally requires removing the existing installation, and using a new library. iPod clickwheel games will have a .ipg file extension. You should be able to drag & drop them into your library, or use File > Add to Library. Your library needs to be authorised for the account that purchased the game. You should then be able to sync the game to your device be editing the device's sync selections.

tt2

Cool, glad you got there in the end. 🙂

tt2