Super Mario Bros Wrap Ad for Bus Simulator 21 is a free mod designed for Windows that enhances the visual experience of the popular bus simulation game. This mod features higher-resolution pixel-art textures, addressing the original quality issues present in the game. It includes two distinct wraps inspired by the iconic Super Mario franchise, specifically the World 1 Overworld and World 1 Underground themes.

In addition to the wraps, the mod introduces three advertisements featuring beloved titles from the Mario series, such as Super Mario Bros. and Mario and Luigi. Players can also enjoy four unique interior designs that vary in color and texture, providing a fresh look to the buses. The combination of these elements aims to elevate the overall gaming experience, making it more engaging for fans of both the bus simulator and the Super Mario franchise.