 Instead of hitting them from below, like in "Mario Bros.", the player must hit enemies using Koopa shells.In 2004, Namco released an arcade cabinet which contained "Donkey Kong", "Donkey Kong Jr." and "Mario Bros." This version of "Mario Bros." was altered for the vertical screen used by the other games, with the visible play area cropped on the sides.The Wii U game "Super Mario 3D World" contains Luigi Bros, a version of "Mario Bros." starring Luigi.