Jet Set Willy walkthrough (ZX Spectrum)

After 30+ years of trying I've finally managed to beat Jet Set Willy on the ZX Spectrum (well, using an emulator on a PC: Speccy 5.2).
Note: My emulator was running about 20% faster than a real ZX Spectrum. (no fault of mine! Speccy 5.2 is not very timing accurate for some games). In my other runs I have used Fuse which is more accurate -- but picture quality and smoothness are not as good IMO. See here for the run on Fuse    • Jet Set Willy on ZX Spectrum Complete Walk...