Pi is a symbol which represents the number, 3.14. It's often used as a running gag in PivotMasterDX's movies.
The Fighting Pi (see below) is seen fighting a hamburger.
The Fighting Pi and hamburger are seen again.
A Pi is used as a weapon by two stick figures.
It is possible that SFOC 3.14 was meant to involve a Pi because Pi represents 3.14, as seen in the title.
The Fighting Pi
The Fighting Pi (as referenced to by fans) is a Pi that constantly fights with its arch-enemy, The Fighting Hamburger. It is the Pi that is seen the most. It has made several appearances.