Nezulla the Rat Monster

Eventually, when a bacterium found in the lab enters the sewer system, a squadron of soldiers is deployed to clean up the mess.

Upon entering the lab via the sewers, the troops are slaughtered one at a time by Nezulla, whose armor-like skin easily deflect their bullets.

Desperate to get through to the gunpowder room, a false safe explosive area, the commanding officer of the squadron bravely steps up to the creature, and forces a grenade into its mouth.

Once the creature is finally dead, the remaining troops set the gunpowder on fire, and cause a chain explosion that destroys the lab, along with the bacteria.

Slow, dreary, and boring; this is a film that needed less angst, less Japanese-flavored melodramatics, and more of what makes a monster movie entertaining, even ones that set about to be more high-minded".