The Green, Ashby-de-la-Zouch, LE6
Ultimate Play the Game was the trading name of Ashby Computers and Graphics. You probably already know the name if you're interested enough to read this blog but not including Ultimate would be like writing about football teams and not covering Manchester United because they are too famous.
Their first game, Jetpac, was released in May 1983, initially for the 16k ZX Spectrum and followed by versions for the VIC-20 and BBC Micro. The lead time of magazines in 1983 was so long that the first review comes two months later in COMPUTER AND VIDEO GAMES issue 21 (July 1983 page 136) where the unnamed reviewer can't wait to tell us, "the tape loaded successfully first time and while the game was loading an impressive title screen was displayed."