Max out your extra life bar in Unlimited Mode.
(You are now a ten-armed monstrosity with the sole purpose of running your disturbed extremities against a suburban neighborhood that never seems to end. All ten of those arms are on your left, and their weight shifts your body's balance to fall on your left side. You're forced to crawl along the ground, like a monstrous centipede of left-handed arms.
In the distance: the screams of children who now believe the monster in their closet is real. A cleansing flame and countless sirens follows you everywhere you go, and it draws closer with every breath. The buildings seem to grow further and taller, but you must keep running from the nearing edge.
There is no stopping, there is no living. There is only running.)
57.30% of players have unlocked this achievement