Squad Angels: Bullet Survivor

This is an intense, solo roguelike survival game played in portrait mode, featuring fast-paced bullet hell combat. While it offers high replayability and can be played in short, interruptible sessions, its heavily pay-to-win monetization and difficulty make it a challenging experience that may frustrate free-to-play users. It's best suited for players who enjoy challenging action and are willing to engage with or bypass its aggressive monetization.