Ninja.gaiden.sigma.update.v1.0.0.2-codex.rar _best_

Open the extracted folder and run as an administrator.

The Legacy of Ryu Hayabusa: Understanding Ninja Gaiden Sigma Update v1.0.0.2 Ninja.Gaiden.Sigma.Update.v1.0.0.2-CODEX.rar

The compressed file format used to distribute the update files. Open the extracted folder and run as an administrator