duology would take a few years to reach US stores, it was dropped from the American version of the game but did appear as an exclusive in the Xbox version. Kiryu was next playable in Godzilla: Save the Earth for the Xbox and the PlayStation 2 under the title "Mechagodzilla 3"; this would be Kiryu's first PS2 appearance in the United States. Kiryu also appears in both versions of Godzilla: Unleashed, for the first time under the name "Kiryu" as opposed to its names in the two previous games; "Millennium Mechagodzilla" and "Mechagodzilla 3". Like the other kaiju in the game, the backstories of all three Mechagodzilla incarnations are altered slightly, to fit the context of the game. The Heisei Mechagodzilla and Kiryu are man-made mecha created by the G.D.F. (Global Defense Force) faction to defend Earth from the Vortaak and their kaiju of the Aliens faction. The original Showa Mechagodzilla was salvaged and rebuilt by the Vortaak to be used in their kaiju force. In the PlayStation 4 version of Godzilla, 4 incarnations of Mechagodzilla appear, the original Showa Mechagodzilla appears as both Mechagodzilla from Godzilla vs. Mechagodzilla and as Mechagodzilla 2 the rebuilt Mechagodzilla from Terror of Mechagodzilla. The Heisei Mechagodzilla appears in its Super Mechagodzilla form, while Kiryu appears in its rebuilt design from Tokyo S.O.S. In the PS4 version, all 4 Mechagodzilla are playable, the 2 versions of the Showa Mechagodzilla can be played in God of Destruction Mode via the Invade option (which allows the mode to be played using Kaiju other than the Heisei era Godzilla), while Super Mechagodzilla and Kiryu can be played via selecting Defend option (where the player defends humanity as friendly kaiju such as Mothra and various G-Force Mecha). In the PS3 version, only Mechagodzilla 1975, Super Mechagodzilla, and Kiryu appear as bosses and are not playable. The thirteenth level of City Shrouded in Shadow, a game where players, as civilians, must escape and survive kaiju attacks, mostly mirrors the first encounter between Godzilla and Kiryu in Godzilla Against Mechagodzilla. The protagonists, tied up in the building by Yakuza thugs, witness Godzilla rampage through the game's setting, the fictional Ichi City, and Kiryu is eventually deployed in response. After a short battle where both shoot at each other, Godzilla roars at Kiryu and reminds the spirit within of his past as a Godzilla, causing him to be possessed & go