Vertical-scrolling bullet hell shooter where you pick one of three characters—each with two skill loadouts—to investigate why winter won't end in Gensokyo. Reimu's balanced, Marisa trades range for power and speed, Sakuya blankets the screen but moves slowly. The Cherry system rewards aggressive play: shooting enemies builds Cherry Points (50,000 earns a brief shield), while bombing or dying drains them. A higher Cherry Gauge multiplies point item values. Your hitbox becomes visible when focused, and attacks change properties between focused and unfocused modes. Boss fights display a cursor at the bottom showing the boss's horizontal position. After clearing the Extra Stage, you unlock Phantasm—a harder bonus stage beyond the usual postgame content. Six stages of dodging dense bullet patterns to reach the Netherworld and stop a ghost princess from using stolen spring essence to revive a sealed soul.
