With the Wall power, James Derettas can summon walls made of Aura Energy that will come from the ground up. They form in front of James and they help protect him from gunfire and give him cover. Walls break after 30 seconds, or a minute if upgraded.
Any enemies that come in contact with the wall get knocked out. Also, if James is touching the wall when the force field is activated, and an enemy shoots or touches the wall, James will recover some health. However, as a drawback this wall only lasts for 20 seconds rather than the normal 30.
The final upgrade for the wall. This wall surrounds you completely, and does not break unless an area is hit with an explosive force, then only that area will break. This is the highest upgrade for the wall. However it only lasts for 30 seconds, like a standard wall.