Break strangleholds
If you get too close to a regular Shibito, it will sometimes prefer to grab you by the neck and choke you to death instead of doing a regular attack. When one takes you into a stranglehold, rapidly move the Left Analog-stick Up and Down.
This will break the hold, and prevent you from dying.
Mission Objectives 2
To unlock Mission Objectives 2 for every character and/or scenario, complete 19 stages in any order. Then, press L1 + R1 while the stage is highlighted at the scenario selection screen. Note: You will automatically obtain it after completing the random 19 stages.
Brain Cell Revival (Zuno) puzz...