PokéBase - Pokémon Q&A
1 vote

1 Answer

2 votes

If you want to know that your Pokémon is from a Japanese game, just check that Pokémon's pokedex entry. If it is from a Japanese game there will be a little [J] on the Info section of that Pokémon's entry. Then you know you just got a Japanese Pokémon. You can also then read that Pokémon's entry in Japanese.

Hope this helped

Another option is to check if it has a Japanese name. But that's a redundant answer, so I won't put it in an answer. :3