Tenchu: Fatal Shadows Cheats

When viewing already unlocked cutscenes in the "Encyclopedia" section, press and hold "L2" while selecting a cutscene and when it loads you'll get to see Ayame or Rin wearing their Armor during it.

Run up to this boss, push towards them, and hit circle to perform a throw. Both Ayame and Rin will administer not their normal throw, but a neck-chop that instant kills this boss.

In order to gain access to the full tutorial with Ayame you must hold "L1" while selecting the Tutorial. No onscreen confirmation will be given but once the tutorial starts you will be using Ayame instead of Rin.