Unlock the following items by performing the corresponding tasks:
ITEM - HOW TO UNLOCK Moonlight sword - Collect all nine Moji. Then, go to Chapter 5, and enter the new cave to get the large sword and upgrade it. Ninja Blade weapon - Beat Chapter 8 Ninjitsu Protective Barrier - Beat all missions on Hard. Tsuinetanarunaifu (Twin Eternal Knives) weapon - Get an "A" rank in all chapters, then upgrade the dual swords to the maximum to unlock the Tsuinetanarunaifu (Twin Eternal Knives) weapon.