I wish I was de bomb <3
It's a Dutch commercial. Wario's got a German accent probably because he spoke German in the early games (remember 'So ein mist!'?). The rest of the commercial has got nothing to do with German. I am frankly a bit annoyed by the uploader wrongly titling the video...If it isn't German, then, is it Dutch, or Hungarian, or something? Why is a German commercial not in German? Unless they had only DK speaking non-German, in which case I still don't know what it is.
remember 'So ein mist!'?