X2: WOLVERINE'S REVENGE UNLOCKABLES
Earning new maneuvers
By pulling off a predetermined amount of stealth moves you will receive medals (dog tags). With the medals more maneuvers and cooler attacks become unlocked.
Earning new maneuvers
You will see the word STRIKE when a stealth move can be performed. This option will not present itself too often so utilizing it when possible is advised. Crouching and moving on all fours is the best way for moving around undetected.