Mrs. Claus has been abducted, and Santa's out to deck the walls with gingerbread men and nutcracker guts. It's a Christmas mashup of Kung Fu for the NES and it's (wait for it) ho-ho-holarious.
Just like Kung Fu (or Kung Fu Master, the arcade original) a drunken, raging Santa battles his way through waves of foes - including Christmas shoppers and elves - before fighting bosses on five levels. if a chiptune "Santa Claus is Coming to Town" isn't your cup of nog, you can choose the soundtracks of Ice Climbers, Slalom, Dr. Octoroc, Gyromite or the original Kung Fu. Be sure to check out the gruesome Game Over screen, too. It'll fill you with holiday cheer.
If the Flash version isn't your speed, or your connection's slow, there's also a downloadable version.
Santa Fu [I-Mockery]