Ketsui: Kizuna Jigoku-tachi

Ketsui: Kizuna Jigoku-tachi is a vertical bullet hell shoot 'em up developed by Cave and released in 2003.

In the year 2054, chaos spreads over the globe as global warming finally exacts its toll on Earth: the ice caps quickly melt, causing a tremendous series of cataclysms and for entire nations to disappear under the sea.

The near apocalyptic setting and the quickly depleting resources of the remaining dry lands force nations into constant war, eventually culminating into World War III; all efforts by the United Nations to cease hostilities are thwarted by a seemingly endless supply of technologically advanced weaponry being sold to each side of every conflict.