Microsoft's 'Brutally Fun' teaser page is for Ninja Gaiden 2! 3 New screens are up, Goretastic!

From the page:

Coming from the shadows in 2008, developed exclusively for Xbox 360 by Team Ninja and legendary game developer Tomonobu Itagaki, with a new game engine, new missions, new weapons, and more. Ryu Hayabusa is back in the all-new, long awaited, and brutally fun Ninja Gaiden® 2 … it's the true sequel.

Guess the Japanese site mistakenly beat them to it!