Japanversion?

is to play it on a German smartphone possible the Japanese version?

on the play store is not as it is, the version is not available in your country.

The English version is unfortunately only until Arlong park

It is sometimes possible if you changing settings in your device. I think i read someting about it on the blog.

best regards

thank you also tell me how this works?

You can find the apk file for the japanese version on "Qoo App" if you type that into google. It worked for me on my android phone.