Team NINJA have thrown in a prologue comic, character and concept art, a light strategy guide with weapon profiles and battle tips, plus commentary from producer Yosuke Hayashi.
Also the lead artists give their two cents, and fans can also enjoy a complete and limited edition soundtrack CD. Let's not forget the exclusive downloadable costume through PSN.
Ninja Gaiden Sigma 2 Collector's Edition will be exclusively released on PS3 this October 2nd, and exclusively available through retailer HMV. See the co-op gameplay clip below.