Sprites are small images of a character used within video games. Sprites were mostly used within the early console days priror to the Playstation when games became 3D. Here's some Simpsons Sprites. This page also features sprites created custom and are clearly indicated.

Virtual Bart: (Mega Drive/Genesis)

Bart and the Beanstalk: (Gameboy)

The Simpsons: Night of the Living Treehouse of Horror: (Gameboy Colour)

The Simpsons: Itchy and Scratchy Land: (Mobile)