Blue Dragon (2007)

Shu, Jiro and Kluke are distraught when they discover that their home town is being attacked by a mysterious force. However, when they decide to take a stand and protect the people that they love, a warrior named Zola gives them the power of shadow, which permits them to turn their shadows into powerful beings that will fight for them. Now, with their newfound powers, they set out to bring justice to those responsible, and to destroy evil at all opportunities.