Gurren Lagann
天元突破グレンラガン (original)
When a young laborer escapes to the world aboveground, he discovers a violent land in which humans battle robots controlled by a power-hungry noble.
Starring Marina Inoue, Kiyoyuki Yanada, Michiko Neya, Mitsuki Saiga, Nobuyuki Hiyama, Katsuyuki Konishi, Takako Honda, Takashi Kondo, Tetsuya Kakihara, Yukari Fukui
It's a animation and action & adventure show, and has a rating of 8.3 out of 10 from Imdb which is very high for this kind of show.
Watch it here
Not found streaming from Australia.