Ninja Gaiden Sigma II demo in September

Full game to hit stores in the autumn.

CVG reports that Tecmo Koei Europe revealed today that a playable demo of Team Ninja's Ninja Gaiden Sigma II will be released on the PlayStation Store in September.

The full game will be released in the autumn, with a firmer release date to be announced in late July.

Sigma II is a PS3 exclusive version of the well received Ninja Gaiden II, which was released exclusively for Xbox 360 in 2008.