[Fuzz]

The NES CE outputs in high-definition and allows a limited selection of display options. You can set the system to 4:3 mode to imitate the proportions of classic TVs, to true-pixel mode to see the games with perfect, undistorted graphics, or the CRT mode to see everything through a fuzzy, imperfect filter that resembles a cheap connection on an old TV.

http://www.usgamer.net/articles/nes-...endos-nes-mini