If you are looking to bypass the grind, you can unlock all modes (Master Ninja difficulty, Chapter Challenge) and weapons by using a on your system save file:
: You can also download pre-made unlocker files or tools from community forums. Ninja.Gaiden.Sigma.2-CODEX.rar
: This version of the game is based on the PlayStation 3 "Sigma" release, which is heavily censored compared to the original Xbox 360 Ninja Gaiden II . Decapitations were removed, and blood was replaced by purple mist to meet strict Japanese rating standards. If you are looking to bypass the grind,