Barnstorming is an Atari 2600 video game designed by Steve Cartwright and published by Activision in 1982. The goal of the game is to fly through barns, while avoiding windmills and birds. There are four difficulties, going from 10 to 25 barns; this run uses the easiest one.
ShesChardcore and MrWint improve the previous run by 11 frames through rigorous optimization. You can read MrWint's notes and ShesChardcore's notes for further details.