Godzilla: The Series - Season 2 - Eps 7: What a Long, Strange Trip It's Been
A new and deadly mutation, a plant-like creature known as Bacillus (who may have been inspired by Biollante), appears and begins wreaking havoc, prompting H.E.A.T. to call upon Godzilla. During the battle, Godzilla is seriously injured and rendered catatonic as the result of being injected with a highly dangerous form of mutated bacteria by Bacillus. In order to save their kaiju ally, Tatopoulos and Monique travel within Godzilla's body in order to carefully exterminate all of the mutant bacterium. Now fully healed, Godzilla attacks Bacillus anew, and eradicates the creature with his incendiary breath.
About Godzilla: The Series

Title: Godzilla: The Series
First Air Date: 1998-09-12
Last Air Date: 2000-04-22
Status: Canceled
Rating: 7.9/10 (from 132 votes)
Language: EN
Seasons: 3
Total Episodes: 38
Network: FOX Fox Kids
Genres: Animation, Action & Adventure, Kids
Production Companies: Columbia TriStar Television, Adelaide Productions
Synopsis
Picking up where the blockbuster motion picture left off, Godzilla: The Series is a fast-paced animated adventure series that pits humanity against a new generation of giant monsters.
Cast

Ian Ziering
Nick Tatopoulos (voice)

Charity James
Elsie Chapman (voice)

Brigitte Bako
Monique DuPre (voice)

Rino Romano
Randy Hernandez (voice)

Malcolm Danare
Mendel Craven (voice)

Tom Kenny
N.I.G.E.L (voice)