While this version of Super Mario Bros. 2 was released in Japan, it was deemed to be too difficult for American audiences at the time. In 1988, consequently, an alternative release was developed to serve as Super Mario Bros. 2 for western players (and later released in Japan as Super Mario USA); this version would play a key role in shaping Luigi's current appearance. The game was a conversion of Yume Kōjō: Doki Doki Panic, with the graphics altered to represent characters and scenes from the Mario franchise. In this release, the character of "Mama", who had the highest jump among the original cast, served as the template for Luigi, resulting in his taller, thinner look, combined with his Marioesque outfit and ubiquitous green color scheme. There were earlier appearances of Luigi being taller than Mario: in the 1988 Famicom Disk System game Famicom Grand Prix II: 3D Hot Rally and earlier, in a very rare 1986 anime Super Mario Bros. : Peach-Hime Kyushutsu Dai Sakusen! (though in the anime he wore a yellow shirt and the color of his hat and overalls were blue). Promotional artwork for Super Mario Bros. 3 and Super Mario World depicts Luigi with this new look; but the actual games would not adapt this different character design in-game until the 1992 game Super Mario Kart. Luigi's distinctive appearance from the Yume Kōjō: Doki Doki Panic-inspired version of Super Mario Bros. 2 has been used ever since, even for remakes of games in which he was originally a palette swap.