Mobile Suit Gundam Unicorn

The game is based off the first three episodes of the anime adaptation. The game consists of several different but intertwined arcs, with each assuming the perspectives of the respective characters. Completing one character's arc will unlock another character's arc. Source: Wikipedia, "http://en.wikipedia.org/wiki/Mobile_Suit_Gundam_Unicorn_(video_game)," available under the CC-BY-SA License.