You are now a heart wandering the sea. "Marine Hearts" is a first-person 3D deep-sea omnidirectional bullet-hell shooter. You pursue the mysteries of the sea while losing your body and becoming only your mind.

Enemy attacks can be predicted by the Laser.

While the Laser is hitting, the controller vibrates and a warning sound alerts the player to the danger.

You rely on the Razor to dodge attacks from all directions.

And while you are stopped, time also stops.

This will help you keep track of attacks from all directions.