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Games in which the player shoots things to progress, usually with a variety of guns, and other times with bows and arrows.

Projects that exaggerate or satirize elements of other media, usually for comedy.

For that old school look and feel.

Shoot 'Em Up or shmup games are a subset of shooter games where the player continually moves forward while waves of enemies enter the screen. Both shooting and dodging are critical to advancing. See also Bullet Hell.