There is also a short walk-through of the CRT controls available in the PC version, on our youtube channel
https://www.youtube.com/watch?v=fxEs6l-2fWU
If you haven't already tried these games, now would be a great time to buy - at only £2.95 each or £4.95 for all the current releases. Downloads include tap and tzx files suitable for any spectrum emulator, audio files for loading directly onto original vintage machines, and stand-alone applications for Windows and Linux PCs. More information, as always at www.vintagesoftwaresystems.co.uk