IT Crowd Jens encounter with the Japanese

Watched this funny episode of the IT Crowd and there's this part where Japanese is being spoken.

No idea what's being said here. The translator in particular speaks like a mad man. Can you understand what's being said? Would you say he's speaking unnaturally fast? I know we are told in English what's being said, so I'm just curious the level of listening you'd need to understand this.

Can't figure out how to post videos but if you search the title of the post into YouTube you'll see it.

by JohnnyBond1