Well consider IGN disappointed. Following a glimpse at some of the most intense action they have ever seen during Tecmo's Ninja Gaiden 2 live gameplay demonstration at Microsoft's pre Tokyo Game Show press conference a couple of days back, IGN have just learned that the game won't be playable at the show.
Although Ninja Gaiden 2 will miss out, Ninja Gaiden Dragon Sword for the DS will have a playable build.