NARUTO SHIPPUDEN: LEGENDS: AKATSUKI RISING UNLOCKABLES
Sakura and Kakashi
Beat chapter 2 to unlock Sakura and Kakashi.
Sasuke
Beat Itachi's story in Akatsuki Mode and you get Akatsuki Mode after beating chapter 10 (the last chapter).
Deidara
Complete Scenario Mode to unlock Deidara.
Hoshigaki Kisame
Complete Scenario Mode to unlock Hosigaki Kisame.
Sai
Complete D-Rank Mission "Putting Naruto to the Test" and B-Rank Mission "Social Training Members" to unlock Sai.
Sasori (3rd Kazekage)
Complete Scenario Mode to unlock Sasori (3rd Kazekage).
Sasori (Hiruko)
Complete Scenario Mode to unlock Sasori (Hiruko).
Uchiha Itachi
Complete Scenario Mode to unlock Uchiha Itachi.