Koei Tecmo has a giant at this year’s Tokyo Game Show, and their flagship title surely is Ninja Gaiden Sigma 2 for PS3. It was playable and looked pretty cool. The same is true for Quantum Theory by the way (another Koei Tecmo action game) whose early version was impressive graphics-wise (but pretty buggy unfortunately).
Ninja Gaiden Sigma 2 for PS3 is scheduled for release in Japan on October 1.
Here’s a video I took at the Koei Tecmo booth: