So I was just watching episode 10 of Cowboy Bebop when the preview for the next ep came up, and I suddenly yell "HOLY CRAP IT'S IGOR." I'd link a video, but I can't find one without the previews chopped off. :(
Vesperia might be good for co-op, but the only decent in-game dialogue are the skits, which don't require you to scroll through them. I can't see the commentary working as well as it did for P4. An adventure game would be a good fit. One of Telltale's series, perhaps.