1, different versions, game servers, different overseas versions (Korean version, American version, Japanese version) are different, and several machines have different support for games.

2. Different devices, the Korean version of Switch is different from the Japanese version and can only be used on the Korean version of Switch. 3. The exchange code is different. The redemption code of the Korean version of Fitness Ring Adventure cannot be used on the Japanese version of Switch, and vice versa.