The story of prison gate mountain is different from ordinary shooting games. Most shooting games are airplanes. The protagonist of this game is a character, and the enemy and boss are mostly characters, fiends. The game background is the mythological era of ancient Japan. You can choose three protagonists, including a witch, a ghost face and a guy with glasses. The vertical version of the shooting game has a very gorgeous picture, a strange style of painting, excellent sound effects and bullets. What I remember most about the game is this painting style and background. I remember that there is a level boss who is a three-headed cat. The cat looks very realistic and even feels a little scary. There is also a boss with the image of a giant baby like Figure 1. It is very fresh to play this again when I am tired of the shooting game with the image of an airplane. There are many types of enemies and many levels bosses. I won't feel bored after playing for a long time.