[5] The webcomic Megatokyo started its run on August 14, 2000 in collaboration with Rodney Caston, who owned the domain and wrote many of the scripts for the first year and a half, while Gallagher was responsible for the artwork.

Megatokyo's success has allowed Gallagher to pursue it as a full-time occupation starting in October 2002, after being laid off from his job as an architect.

Gallagher's income from the strip comes from advertising, sales of Megatokyo books and merchandise, Patreon, and Twitch.

While this has earned praise from some critics, it has also alienated some fans of the earlier strips, which were more comical, relying more on humor, slapstick, gags, and simpler storylines.

Gallagher later took it offline for personal reasons, but a discussion on February 2, 2006 on 4chan started a coordinated attempt to discover the contents of this website.

On June 8, 2006, Gallagher again allowed public access to the "blurred" site, and mentioned it in his newspost on Megatokyo, in order to end the controversy.

"But maybe 2 regularly delivered comics with everything else you expect from these websites - rants, updates, etc - including some other projects like maybe 'warmth' getting off the ground (and that endgames doujin i want to do)... we'll see."

[12] International convention appearances include Anime Expo Tokyo in 2004[13] and Ayacon in Northampton, UK in 2003.