Planet Spines

Planet Spines are a phenomenon that exists on the current planet. Not much is known about the purpose of these objects, but the Tri Society is well aware of them. The previous planet that humans originated from did not have Planet Spines within it. Controllers can manipulate them, making them rise, fall, or tremble like a rail or track for them to follow. When the controller manipulating them breaks, the pieces of them fall apart, but they can also be launched like missiles at a target without affecting the structural integrity of the rest of the line of spines, as seen in the Omega Controller boss fight.

Electricity seems to be the way that the Planet Spines are activated, and their trembling causes earthquakes that are increasing in frequency due to the Ivory shortage. It is believed that they are part of what is necessary for the planet to continually change its shape. The tremble of these spines may be the way that Controllers are summoned to the surface by the One Concern, as after the initial cut scene of the game, Robin is led to a freshly Penanced house and to the first Controller encountered in the game.