At first I thought he was going to be a pretty awesome character. I've met many other players who whooped me with Koga. I don't know if they nerfed him a little before I had the chance to play him, but I was disappointed.
His main weapon is the double automatic machine guns. They do decent damage to an enemy foe.
But what is more powerful are his claws which can "Zelda sword" through the air and hit someone far away.
But his abilities are also reliant on his magic bar which most other champions lack completely. Once you're out of shinobi juice, it's pretty much over.