Some reviewers noted the campaign's relatively short length (approximately 4–6 hours) and a limited variety of boss encounters. Conclusion

Following its September 2022 launch, the game received generally positive reviews. Critics praised the tight synchronization between the music and gameplay, noting that it creates a "flow state" rarely achieved in standard shooters.

As players maintain the rhythm, their "Fury" multiplier increases, topping out at 16x. Higher Fury levels not only increase damage output but also add layers to the music, eventually bringing in the lead vocals once the maximum multiplier is reached.

The defining characteristic of Metal: Hellsinger is its rhythm-based combat. Players take on the role of "The Unknown," a demon fighting through the layers of Hell to reclaim her voice. Success in the game is tied directly to the player's ability to perform actions—shooting, reloading, and dodging—on the beat of the music.