Here is an interesting one (including the comments): https://www.shadertoy.com/view/XtlSD7 https://www.shadertoy.com/view/XtlSD7 > // Interesting findings from

Here is an interesting one (including the comments): https://www.shadertoy.com/view/XtlSD7 https://www.shadertoy.com/view/XtlSD7 > // Interesting findings from original NES Super Mario Bros.: > // -Clouds and brushes of all sizes are drawn using the same small sprite (32x24) > // -Hills, clouds and bushes weren't placed manually. Every background object type is repeated after 768 pixels. > // -Overworld (main theme) drum sound uses only the APU noise generator