The Return of Naniboujou

On the eve of an alien invasion the governments and militaries of Earth have been so decimated by natural disasters that the planet is easy pickings for the approaching Armada. As if that weren't enough for the populace to worry about Satan appears ready to throw his weight and powers around. An unlikely team of heroes band together to fight the forces of evil but find they are overmatched. Is there anything that can tip the scales in the favor of Earth?