Megatokyo is an English-language webcomic created by Fred Gallagher and Rodney Caston, debuting on August 14, 2000, and then written and illustrated solely by Gallagher since July 17, 2002. Gallagher's style of writing and illustrations is heavily influenced by Japanese manga. Megatokyo is freely available on its official website, with updates on Monday, Wednesday, and Friday. It is among the most popular webcomics, and is currently published in book-format by CMX, although the first three volumes are published by Dark Horse. Sales of the comic's print editions rank it as the best selling original English-language manga.
Set in a fictional version of Tokyo, Megatokyo portrays the adventures of Piro, a young fan of anime and manga, and his friend Largo, an American video game enthusiast. The comic often parodies and comments on the archetypes and clichés of anime, manga, dating sims and video games, occasionally making direct references to real-world works. Megatokyo originally emphasized humor, with continuity of the story a subsidiary concern. Over time, it focused more on developing a complex plot and the personalities of its characters. This transition was due primarily to Gallagher's increasing control over the comic, which led to Caston choosing to leave the project. Megatokyo has received praise from such sources as The New York Times, while negative criticism of Gallagher's changes to the comic has been given by sources including Websnark.