The first platform game to use scrolling graphics came years before the genre became popular.[31] Jump Bug is a platform-shooter developed by Alpha Denshi under contract for Hoei/Coreland[32] and released to arcades in 1981, only five months after Donkey Kong.[33] Players control a bouncing car that jumps on various platforms such as buildings, clouds, and hills. Jump Bug offered a glimpse of what was to come, with uneven, suspended platforms and levels that scrolled horizontally and, in one section, vertically.[31][34]