Denki Groove's video for "Mononoke Dance" is yet another masterpiece by manga artist Masakazu Amahisa. Using stick-puppet animation, the video tells the story of a couple who crash their car on a dark forest road and encounter a Konaki-jiji (monster baby with the face of an old man) that leads them deep into the woods to a wild party for yokai, or traditional Japanese monsters. (Watch it.)
Guests at the party include Hitodama (fireballs), Kyonshi (Chinese vampire), Onyudo (shapeshifting monk), Jizo (guardian deity of children), Noppera-bo (faceless ghost), Rokurokubi (long-necked monster), Kappa (water imp), Hoichi the Earless, someone who dances like Yoshio Kojima, and many others.
Incidentally, the song "Mononoke Dance" is used as the opening theme for the "Hakaba Kitaro" anime series now airing on Fuji TV (the video here is completely unrelated to the TV show).