In Godzilla vs. Destroyah, a dark goodbye in the Godzilla Heisei series, the monster lizard fights with Godzilla Jr. by his side. Godzilla's radioactive insides threaten mankind as he battles a horrible beast derived from the original oxygen destroyer. In Godzilla vs. Space Godzilla, a weapon designed by the government agency G-Force teams up with Godzilla -- its original target -- to fight an alien attacking Earth.