: The Sigma version is known for replaced gore (blue mist instead of blood) to meet CERO D ratings . However, many players use the Ninja Gaiden Sigma 2 Black mod on PC to restore original blood effects and increase difficulty.
The CODEX group officially retired in early 2022. Any new files appearing with this tag after that date should be treated with extreme caution, as they may be mislabeled or contain malicious software. Security and Safety Warnings Ninja.Gaiden.Sigma.2.Update.v1.0.0.2-CODEX.rar
He realized then that v1.0.0.2 wasn't an update for the game. It was a bridge. : The Sigma version is known for replaced