Port of NxEngine to the libretro API. NXEngine is a Cave Story game engine clone. It will require Cave Story 1.0.0.6 and the Aeon Genesis translation which can be download from the RetroArch downloadable content. Alternatively Cave Story is available from Studio Pixel's website: http://studiopixel.sakura.ne.jp/archives/index.html The Aeon Genesis translation is available from: http://agtp.romhack.net/project.php?id=cavestory To build the debugging symbols use: DEBUG=1 ./nxengine-libretro.SlackBuild