Answer:
I roam through the lands hoping to rescue my love. I search high and low and will stomp on you if you get in my way!
I shoot but never kills
I'm a ruler with 12 agents. Half of them work in the darkness. Who am I?
Sometimes I am white, sometimes I am dark. Most people love me. What am I?
I can fall off a building and live but in water I will die.
I'm the source of all emotion but I'm caged in a white prison.