Note: While Godzilla® 1998 and Zilla are by technicality the same character by design, they are legally different characters.All media and merchandise of the character before 2004 is under the trademark of Godzilla®.In Godzilla: Rulers of Earth, he retained many of the same abilities and characteristics of his 1998 counterpart, although he lost his cowardly nature.He faced Godzilla head-on once again, evaded his attacks, and landed several attacks of his own.He is defeated rather quickly by Godzilla himself, who sends him flying into the Sydney Opera House and finishes him off with his atomic breath.
When Godzilla is freed from the south pole and defeats the Xilien warrior Gigan, the alien leader's re-release Zilla in Sydney to do battle with Godzilla.
According to an interview with Simon Strange conducted by Chris Mirjahangir from Toho Kingdom, Zilla was in fact considered for the game, but due to lack of popularity from fans who said that "his inclusion would ruin the game," Zilla was scrapped..
He is first sighted by a submarine which mistakes him for Godzilla.
This ability is present with Zilla in Godzilla: Rulers of Earth, which allowed him to evade and ambush Godzilla.
In Final Wars, Zilla is said by director Ryuhei Kitamura to possess an "acidic flame breath." This is most likely a variation of his previous incarnation's power breath, but it is never seen in use, only hinted at when Zilla emerges from behind an explosion similar to the one caused by Godzilla's power breath in the 1998 film.