The anime adaptation of the business drama manga by Kenshi Hirokane is online for free viewings on Youtube.
Shima Kosaku stands for Shimako Daikaiju Shima Kosaku no Maki. It depicts the life of a salaryman, a Japanese white-collar worker who devotes his life to his company. It won the Kodansha award in 1991.
It is quite an interesting initiative of a completely flash based anime, as it shows you the possibilities of doing so for aspiring anime/manga artists.
Here it is!