What business published XXX?
Lode Runner
Over the years, a series of Lode Runner games have been developed for numerous systems, including Commodore 64, MSX, Atari ST, Electronika BK, PC-8001, PC-6001, X1, FM-7, SG-1000, Atari 400/800, PC-9801, DOS/Windows, ZX Spectrum, Mac OS, Amstrad CPC, NES, Game Boy, BBC Micro, Nintendo DS, PlayStation, Virtual Console, Xbox 360 (XBLA), iPod and Android.