Never mind "Cool Ranch" or "Black Pepper Jack" Doritos -- all the cool kids eat "Swift Kick to the 'Nads" Doritos!
But seriously, if any of you can read Japanese or know what's going on with the packaging, please leave a note in the comments and explain what's happening here.
[Photo courtesy of Miss Fipi Lele]

http://www.strage.net/denkianma/denkianma/preview_061.htm#%93d%8BC%83A%83%93%83}%8AO%8Fo%95%D2
-- manfire
-- manfire
http://www.flickr.com/photos/tbit/188712242/
I think everyone else has covered what's actually going on ("Revived by an electric nut-grind!"), but I can tell you who it is: Tights-kun! IIRC the one with glasses is Jonathan and the other one is Pierre.
It's kind of hard to summarize what they're all about. It's more of a mood than a story. Earnest + good-hearted + manly + surreal?
You can see the official announcement of the Doritos deal here. You can also see a blog about tights that allegedly got a nastygram from the trademark owners (because of their position in the Google results for "tights-kun" in Japanese) here.
Hope this helps!
-- Matt from No-sword (via Languagehat)
So much for my Japanese cultural interpretation. Hey, they make you strong, those chips!