Microid S
Genres: Action, Sci-Fi
Type: TV, Episodes: 26
Aired: Apr 7, 1973 to Oct 6, 1973
Studio: Toei Animation
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
This work focuses on environmental issues from the viewpoint of insects. In a refreshing twist, the central character miniaturizes, unlike the conventional hero who grows ever larger. From this perspective, the world looks different and unfamiliar. This work enables the reader to see that the world around is quickly moving towards destruction. 

(Source: en.tezuka.co.jp)