Talk:Godzilla: Tokyo S.O.S./@comment-26687424-20150716000650/@comment-25285745-20151125172233

Megaguirus only appears through stock footage at the beginning of Final Wars. Lots of other monsters appear through stock footage at the beginning of the movie. It has nothing to do with the plot or continuity of the film, it's just a way to pay tribute to all of Toho's kaiju films before it.