Help Me about iPod Click Wheel Games ?

See Managing apps with iTunes 12.7 or later - Apple Community. You need iTunes 12.6.5.3 in order to transfer iPod ClickWheel Games to an iPod. If you don't have a copy of the .ipg file stored from an earlier download then I think it may be too late to get it now. These date back to a time when one download was all you got and it was up to you to keep backups thereafter.

tt2

No, Apple stopped selling them in 2011. Check in your iTunes and iTunes Media folders for a folder called iPod Games. If you're still using the library originally used to load up the game to your iPod then you may have a copy of the file even though it no longer shows in the current version of iTunes.

tt2