Bullet Hell is a subgenre of video games, particularly in the shoot 'em up category, where players navigate through screens filled with a dense barrage of projectiles. The objective is to avoid these bullets while simultaneously shooting enemies and completing levels. These games often feature intricate patterns of bullets that require precise movements and quick reflexes. Players typically control a character or vehicle that can move freely across the screen, making dodging essential to survival. Popular examples of Bullet Hell games include titles like Touhou Project and Ikaruga.