So it's usable with all shaders that support it: cgwg-famicom-geom.glsl, gtu-famicom.glsl or ntsc-nes.glsl that you find in the libretro glsl-shaders. This by itself produces an image with completely bizarre colors, but this can be decoded by shaders to generate actual colors, the main examples being GTU-Famicom and nes-color-decoder'.It's memorable for the fun of fooling the robots into destroying themselves and the competition to break the world record. Berzerk is an arcade game released in 1980 by Stern - one of the first games to dynamically generate mazes and have synthesized voices.