2001 Kodansha Manga Award in the General category, and his third Shogakukan Manga Award in the General category in 2002. It ended in 2006 and was collected into 22 volumes. The story briefly continued as 21st Century Boys in 2007, which was collected into two volumes. 20th Century Boys was adapted into three live-action films, which were released in 2008 and 2009. While working on 20th Century Boys, Urasawa began adapting "The Greatest Robot on Earth" story arc of Osamu Tezuka's Astro Boy into the series Pluto. It was serialized in Big Comic Original from September 9, 2003, to April 5, 2009, and collected into 8 volumes. It earned him his second Tezuka Osamu Cultural Prize. In 2008, Urasawa began working for Kodansha, serializing Billy Bat in Morning. It ran from October 16, 2008, to August 18, 2016, and was collected into 20 volumes. Also in 2008, Urasawa and Nagasaki took guest teaching posts at Nagoya Zokei University, where they taught "Modern Expression Course: Manga Classes" two to three times a year, although the class met every month. Initially planned for only five students, he agreed to expand it to fifteen in an effort to create more "real artists." 2010–2019 Oricon held a poll on the Mangaka that Changed the History of Manga in 2010, mangaka being the Japanese word for a manga artist, and Urasawa came in tenth. In 2011, Urasawa illustrated a picture book adaptation of Kosuke Hamada's story Red Oni Cries. Urasawa began writing a sequel to Master Keaton in 2012 titled Master Keaton Remaster. When asked why he went back to a series after so many years, Urasawa stated it was because with the original series he had a hard time making the story he wanted due to contractual obligation, and because people affected by the 2011 Tōhoku earthquake and tsunami said they had enjoyed the series, so he wanted to do something for them. Beginning in the March 2012 issue of Big Comic Original it finished in 2014 and was collected into a single volume. As a guest at the 2012 Japan Expo in France, Urasawa talked about how he entered the manga industry, gave a live drawing demonstration, and performed two songs as a musician, and joined rock band Hemenway on stage the following day. Between 2013 and 2014, Urasawa contributed to the essay series "The Old Guys" that was published in Shueisha's Jump