Sweat Punch (スウェットパンチ) is a series of five Studio 4°C shorts collected in January 2007 as a direct-to-DVD package film titled Deep Imagination. The first four shorts had previously featured on the 4-volume "DVD magazine" series, Grasshoppa! (グラスホッパー！), with one Sweat Punch episode per Grasshoppa! DVD. Upon collection and release in 2007's Deep Imagination, a fifth short was added to the Sweat Punch series. Each short is directed by a different director, and the shorts deal with a variety of subjects.
Professor Dan Petory's Blues
A 10-minute short directed by Hidekazu Ohara,[1] "Professor Dan Petory's Blues" (「タンペトリー教授の憂鬱」) is a musical number[2] starring a hand puppet named Junior. The puppet is controlled by the drunken Professor Dan Petory who explains in puppetry the answers to such questions as why the Earth is blue and why UFOs fly in a zig-zag pattern.[3]