Excel Saga (エクセル・サーガ)

Excel Saga (エクセル・サーガ Ekuseru Sāga) is an absurdist comedy manga series written and illustrated by Rikdo Koshi. It has been serialized in Young King OURs since the April 1996 issue, with individual chapters collected and published in tankōbon volumes by Shōnen Gahosha. As of November 2008, 21 volumes have been published in Japan. The series follows the attempts of Across, a "secret ideological organization", to conquer the city of Fukuoka as a first step towards world domination. The titular character of the series, Excel, is a key member of the group working towards this goal, while the city is defended by a shadowy government agency led by Dr. Kabapu.
The manga was adapted into an anime television series by Victor Entertainment. Directed by Shinichi Watanabe and featuring animation from J.C.Staff, the series premiered on TV Tokyo on October 7, 1999 where it ran until its conclusion on March 30, 2000. Twenty-five of the twenty-six episodes aired, with the final episode being intentionally made too violent and obscene for public broadcast. As such, it was only included in the DVD release of the series.
Both the manga and the anime follow the trials and tribulations of Across, a self-styled “secret ideological organization”, in its quest to conquer the world and rid it of corruption. Its leader, Lord Ilpalazzo, plans to begin with just one city: Fukuoka, Fukuoka, in the manga and "F City, F Prefecture" in the anime. He justifies this strategy by saying that conquering one city allows leeway for setbacks, and that the people of the world would not be ready for immediate unification. Defending the city are Dr. Kabapu and his Department of City Security, also known as the Municipal Force Daitenzin, a masked fighting force. While the manga and anime both principally revolve around this conflict, each medium features unique subplots. The manga is tightly tied to the main plot and explores the origins and natures of several main characters, especially Kabapu and Ilpalazzo. In contrast, the anime adds a side story mostly independent of the main plot, focusing on the ghost of Pedro (an immigrant construction worker), Nabeshin (the director's alter ego), and That Man, a villain introduced in later episodes.

# Reference
http://en.wikipedia.org/wiki/Excel_Saga
Excel Saga - Complete Collection(Amazon.com)