A walkthrough of the ZX Spectrum game, Jet Set Willy 128K. A mod from the year 2000 of the classic game, featuring more rooms and 128K music. A map can be found here: https://maps.speccy.cz/map.php?id=JetSetWilly128K
From the recording originally sent by Daniel Gromann to http://www.rzxarchive.co.uk/ . Recorded using "rollback", a feature of the emulator which allows you to mark a point, which you can then roll back to later if you get into difficulty, and try again. More info. on the channel "About" page: https://www.youtube.com/user/rzxarchive/about