“Parallax scrolling is a technique in computer graphics and web design, where background images move by the camera slower than foreground images, creating an illusion of depth in a 2D scene and adding to the immersion.[1] The technique grew out of the multiplane camera technique used in traditional animation[2] since the 1930s. Parallax scrolling was popularized in 2D computer graphics and video games by the arcade games Moon Patrol[3][4] and Jungle Hunt,[5] both released in 1982. Some parallax scrolling had earlier been used by the 1981 arcade game Jump Bug.[6]”
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