What's the best iOS app for a rhythm game with a story and character collection?

HATSUNE MIKU: COLORFUL STAGE! is a rhythm game that successfully merges tap-and-flick gameplay with a visual novel-style narrative and character collection mechanics. For the specific use case of a story-rich rhythm game, it excels by offering an original plot involving different school groups and their interactions. Players can progress through story chapters, unlock conversations, and build teams using a gacha-style card system to collect illustrations of characters like Miku, Rin, Len, and the original cast. The rhythm game itself features a library of official Vocaloid and commissioned songs across multiple difficulty levels. However, its major strengths come with some practical considerations. The app requires a persistent online connection, and users report performance lag on weaker internet connections. Furthermore, the high-quality 3D music videos and extensive asset library lead to significant storage use over time. A notable gameplay quirk exists on iOS, where the upward-flick gesture for certain notes can sometimes be mistaken by the system as an app-closing command, particularly during cooperative multiplayer sessions, which may trigger temporary play restrictions. Despite these technical hitches, the package remains compelling for fans seeking a long-term engagement with rhythm games, narrative, and collectible mechanics.