Metal Gear Rising: Japanese Language Trailer
Raiden does speak Japanese.
We won't have to wait until Thursday's Metal Gear 25th anniversary event to hear Metal Gear Rising with Japanese voices. Konami released a Japanese language trailer today just as word of the game's Japanese voice cast leaked out of Dengeki PlayStation.
This trailer is just the Gamescom trailer with Japanese voices. The Gamescom trailer was, of course, just an updated version of the game's E3 trailer. A new trailer is being cut for Tokyo Game Show, where a new character will be announced for the game.
View the Japanese language Gamescom trailer below. For voice cast details, see this story.