Just by chance something earlier today made me think of the 80s computer game, Jet Set Willy (IIRC this was also known as Manic Miner in some places). So I ended up watching some YouTube vids of the game and the old Sinclair ZX Spectrum computer that was popular back in the 1980s.
Below is a video of someone completing the game on darnkitty.com – please note that there is no sound with the video, which is probably not a bad thing as it could drive you nuts after a short while!
Brings back a few memories, mainly of frustration and me pulling my hair out. But it was one of the most popular games back in the day.
And there is an American’s review of the old 48k Speccy, looking at it as a retro toy and the problems of running it on US power and NTSC displays.