Ash reveals his dark side, using save corruption and direct memory manipulation to catch 152 Pokémon in the blink of an eye. Then he beats the game in less than a minute (in-game time) - without ever leaving his own room, bypassing Professor Oak's speech by walking through a television, bumping into a wall, and having the game inform him about 1 error.
This run is so glitchy that it's near impossible to follow what's going on without help; reading the author's notes is highly recommended.
To see a run of the first generation of Pokémon that doesn't take advantage of save data corruption, watch the movie of the Blue Version.
Note: This movie requires VBA rerecording v19, v21 or v22.