There have been various clues released through the viral marketing campaign. It is likely that the monster has something to do with this (fake) news report.
http://www.youtube.com/watch?v=NfTWm1nCgLc
Also there are tie-ins with the following websites:
http://www.tagruato.jp/
http://www.tidowave.com/
http://www.slusho.jp/
The suggestion is that the guy in the trailer who is leaving for a new job is going to work for the Slusho company who's drink consists of a special ingredient that is extracted by drilling into the sea bed. This drilling is presumably what disturbs the monster, causing what you see in the video.
http://www.youtube.com/watch?v=NfTWm1nCgLc
Also there are tie-ins with the following websites:
http://www.tagruato.jp/
http://www.tidowave.com/
http://www.slusho.jp/
The suggestion is that the guy in the trailer who is leaving for a new job is going to work for the Slusho company who's drink consists of a special ingredient that is extracted by drilling into the sea bed. This drilling is presumably what disturbs the monster, causing what you see in the video.
It's a very exciting way to market a film I must say.