Gangaia continent humans and demons is, coexist peacefully without hostility. But one day, a demon who lives in the underground is, caused the war to try all of the ground to those of their own. So human army, will be Semekomu the labyrinth that dwells demon in a small fighter "Owl-Zoo", was of the strategy is 4 warriors volunteered "Owl-Zoo" is a vertical scrolling shooter that starts from such a story. In this as in the story, but he becomes the start of the game select the pilot from among the four warriors, Uchikata of each is its own equipment to manipulate the pilot shot is different. Or be divided extensively shot, etc. or can shoot concentrated in one direction, have their own shots are provided by the pilot, it can be selected pilot that matches the taste. If sometimes play in the unusual pilot, you will also enjoy the fun different. Stage have been prepared 8 faces in total, it is possible to proceed to the next stage if defeat the boss characters that wait in the wings at the end of each stage. Source: The Publisher Website.