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.
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.
You must play story mode to unlock the missions
The following Special Abilities are unlocked by acquiring the corresponding number of scrolls in Story mode.
You can unlock the following character specific items for the other character by Grandmastering or getting an Assassin ranking on the following chapters in Level Select mode only.
The following Two weapons can be unlocked by first finding them while in Story Mode. There is one unlockable weapon for each character. Once you have the weapons and complete the missions they will always be available in your Item Selection Screen.
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.
to view your status plug in your second player controller and pause the game with your first player controller, and enter square, square, down, down, up, up on the second player controller