Well this is a bit of a surprise as I thought Allan Turvey's Spectrum conversion of Joust couldn't get any better, yet here we are mentioning the ZX81 version of Roust! Which has since been released for all to enjoy. Yes indeed in celebration of the ZX81 home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation, Highrise Electronics Inc have released the Roust! ZX81 Birthday Edition in celebration of 37 years since the computer appeared in our hands.