Godzilla Against Mechagodzilla and Godzilla: Tokyo S.O.S..
For the first time in the Millennium Series, a specific Godzilla would appear in a series of two movies, Godzilla Against Mechagodzilla and Godzilla: Tokyo S.O.S..
As predicted at the end of the original film, a second Godzilla emerges in the middle of a typhoon in 1999, but would be driven away. In his attack on Tokyo, he was temporarily defeated by the new Mechagodzilla. Godzilla reappeared in 2003 where it would take the combined efforts of Kiryu, Mothra and her larva to bring him down.