Death Kappa 2010

Name: Death Kappa
Released: 2010-06-25
Cast: Misato Hirata, Mika Kimura, Ryûki Kitaoka, Daniel Aguilar Gutiérrez, Hideaki Anno

Synopsis:

When military experiments go haywire and trigger an atomic bomb, the consequences are of epic proportions. A monster arrives in the midst of the nuclear fallout, and Japan's defenses are helpless against it. Mankind's only savior is an irradiated water goblin from Japanese folklore called the "Death Kappa." The two rival monsters must go head-to-head in the ultimate battle between good and evil!