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Mechagodzilla,Mechagodzilla 2,Kiryu (Mechagodzilla 3),M.O.G.U.E.R.A,and Mecha King Ghidorah.
mechagodzilla, because he is more powerful.
The duration of Terror of Mechagodzilla is 1.38 hours.
Terror of Mechagodzilla was created on 1975-03-15.
ps. it saids on the godzilla unleashed wiki that mechagodzilla was built by the vortaak.