I am working on amateur translation for a videogame, this game was originally in Japanese and another team translated the texts into English.
Check out this video, from the English subtitles (activate the CC subs from youtube player to see them), seems the character uses some slang while he speaks
Because I don't know Japanese (yet!) I would ask you if the English subtitle reflects the way Keith speaks.
How do you classify the register of this character? Does he uses all the slang like it seems from the English subtitles?