All Crystal Skulls in Mission 1-1 of Ninja Gaiden Ragebound Mission 1-1 serves as a tutorial for more of the game's core mechanics, offering a single Crystal Skull that, once again, is easily ...

The first Crystal Skull is found in a side room you can access as you descend an elevator shaft (shown in image 1). Head through the passage marked in the image to reach a room filled with enemies.

Crystal Skulls are hidden throughout Ninja Gaiden Ragebound's levels, often hidden away in hard-to-spot and hard-to-reach locations.