Godzilla: The Series - Season 2 (1999)

Norrzug the Iron Lion, a giant sphinx-like monster was created in ancient times to guard the city of Amon-Ra, but it betrayed its makers. When archaeologists awaken it again in present day Egypt, it attacks oil fields to feed on oil.

Medusa, a mutated sea anemone that's part of the Mutant Circus attractions, escapes and threatens Earth's water supplies.

Mutated female Komodo dragon Komodithrax and Godzilla fall in love, so H.E.A.T. must protect "her" from the army and other mutants.

Bacillus, a giant mutated germ infects Godzilla. Members of H.E.A.T. must enter Godzilla's body and stop the deadly infection.

A mutated manta ray interrupts the wedding of Elsie's spoiled sister. Elsie sees this as an opportunity to prove herself to her estranged parents who are attending her sister's wedding and think Elsie is a no-good klutz.

H.E.A.T. battle a seemingly indestructible giant mutated centipede called Megapede in Illinois.

H.E.A.T. investigates the myth of Area 51 with unexpected results and tries to save Las Vegas from a giant mutated thorny Australian lizard.

A giant mutant shrew dubbed Shrewster can create a powerful twister that threatens New York.

A girl named Meg asks H.E.A.T. to find her two brothers who went missing in a silver mine. They find Silver Hydra there, a mutated monster that turns anyone it touches into silver statue and can regenerate itself in seconds.

Giant mutated scorpion Ts-eh-go appears in New Mexico. However, the local army commander has his own plans with this creature and H.E.A.T. is in his way.

The three giant-game hunters from the "Cat And Mouse" episode receive three well armed battle robots called "Lizard Slayers" from their benefactor to destroy Godzilla.

Armillaria, a giant fungus that sucks amino acids out of living matter, shows up in Michigan. Also, the city of Miami sues H.E.A.T. for damages when their latest battle with a giant mutated vampire bat leaves the city in ruins.

A giant mutant that creates fire around itself attacks an oil rig in New Mexico.

Giant mutated hummingbirds are attacking planes and other aircrafts in San Francisco, but they can flap their wings so fast, they become invisible to human and Godzilla's eyes.

A mutant dubbed Swamp Beast by the locals appears in New Orleans during Mardi Gras. However, the locals claim the beast is not a mutant but natures revenge against local corruption and oil digging.

Deep-Dweller, a giant mutated creature that partially resembles a fish and partially a frog, attacks the boats and ships near the coast of New Jersey. A sleazy local promoter unwisely uses this to his advantage.