However, I would estimate only about three of them are legal to play the Ken Jennings Drinking Game, as passed on by parilous.
My personal, Kellinator-only version of the Ken Jennings Drinking Game is much simpler: Every time he's mentioned, I do a shot.
theashifaction is trying to cheer me up by pointing out "you batteled against a legend. thats NOBLE. thats something to tell your grandchildren." My personal plan is when I hit 70, I'm going to send the Jeopardy producers a heartwarming letter about how as a young girl I had my ass handed to me by The Great Ken Jennings, and could I audition again to show my grandkids? Then I'll go out and kick some half-my-age ass. Then again, this is of course assuming I'll have brain cells left after twenty years of the Ken Jennings Drinking Game.
EDIT: Be sure to check out the Sports Guy's take on Ken, courtesy of mgrasso.