Cyberun is a ZX Spectrum video game ostensibly developed by company Ultimate Play The Game and published by U.S. Gold in 1986. Although not part of the Jetman series, it has similarities to Jetpac in that the player must construct their spaceship from parts, then seek out resources and power-ups. Unlike other Ultimate titles, Cyberun was not written by the partnership of Tim Stamper and Chris Stamper. Source: Wikipedia, "Cyberun", available under the CC-BY-SA License.