Touhou: Bullet Monsoon is a roguelike-inspired bullet hell shooter and a fan-made derivative work based on the Touhou Project series. In each stage, players are placed in a confined arena where waves of enemies continuously spawn. You must dodge intense barrages of bullets while eliminating enemies to survive. Bullet Monsoon emphasizes a heightened dodging experience, pushing players to navigate through dense and dynamic patterns of enemy fire. As you progress, you can strengthen your character by gaining experience points. Each upgrade is randomly selected, offering a wide variety of build combinations and significantly enhancing replayability.