Yu-Gi-Oh 5Ds Stardust Accelerator Language

Hey
I'm totally new to NDS Emulations, so please don't laugh at me because of my problem :-[
I've found this Yu Gi Oh game hereMy problem is, that I can't change the language ingame into german (it's always englisch), but on that pictures i read german stuff
so my question is how do i change it ? :)

Have you started the game yet? I think when you make a save file, it asks what country you are. That probably determines the language. You can't change language at options so...

yes, when i start a new game, the game asks me about my land, region ... , but that doesn't change the language ingame

What language do you want? Which rom you download affects the language. So if you download, let's say... Korean or something. It'll be in Korean then.

happening to me, i had a spanish firmware in my emulator folder and after i took it out it went back to english so in short its gotta be your firmware

Read the Common Issues. https://www.romulation.org/forum/index.php?topic=1462.0

I just wanted to change the language from english into german, but I see that changing language is more difficult than i thought :D
So it's all the same and i keep playing in englisch :)