http://tasvideos.org/22M.html
This is a tool-assisted speedrun, made on an emulator, using frame-by-frame shooting, savestates, and rerecords to overcome reaction time and human error. As such, it is purely a form of entertainment, and is not designed to show skill.
A fast completion on Super Turrican - a game that is said to be extremely difficult, and a game that was entirely produced by one man.
Actually quite impressive - upon closer inspection, the game doesn't look very easy, yet the player thrusts full speed through everything.