Ninja Dog used to be a human being, but he was bewitched when he refused to help an old man. He suddenly turned into a dog, that was charged to travel around the world in order to save people and animals in distress. Once Ninja Dog will have accomplished all his missions, the old man will transform him into his original shape again. Well, that's a heavy burden of course. Will you help him accomplish all the missions?
Check the in-game instructions that are different for each mission.