Tetsujin 28-gou Gao!
Genres: Slice of Life
Type: TV, Episodes: 151
Aired: Apr 6, 2013 to Mar 26, 2016
Studio: Eiken
Source: Manga
Rating: G - All Ages
Synopsis:
This series of anime shorts, roughly five minutes in length, will focus on protagonist Shoutarou Kaneda's everyday life instead of focusing on battle scenes as previous Tetsujin 28 titles have done. The visuals of the title robot, its nemesis Black Ox, and other elements will have a pop-art style.

(Source: ANN)