Gyo: Tokyo Fish Attack!

The country is being invaded by ferocious fish with sharp metal legs, hell-bent on death and destruction! Amidst the carnage, Kaori embarks on a desperate quest to find her missing boyfriend before he is lost to the mayhem that is sweeping the land. Facing four legged killer sharks, machine driven squid and the myriad dangers of Tokyo, now an urban war zone, Kaori must find the truth behind these mechanical monsters and face an evil greater than she ever could have imagined.

Something in Okinawa reeks, and it isn’t long before Kaori and her friends realize that the smell is coming from dead fish, which are walking out of the sea. The fish are fused to metal legs and are infected with a disease contractable by humans that was invented as a weapon by unknown sources. After what happens to Tadashi, Kaori finds herself in a new world very much like the old one but with the stench of death.