Unlock all secrets.
Defeat all the guards before completing your mission.
Complete the Saboteur story.
Hit a camera with a shuriken.
Collect the disk.
Collect the bomb.
Complete your original mission.
Destroy a CROC robot.
Destroy a SWORD robot.
Beat an enemy ninja.
Destroy all of the robots.
Play all of the arcade machines.
Find the captain of the guards.
Find some VR goggles.
Defeat a dog.
Defeat a guard without him seeing you.
Complete the Nim lab.
Complete the Anderson lab.
Complete the Superior lab.
Complete the Keyes lab.
Complete the Fast lab.