You can see a video in the embedded tweet below:
Jet Set Willy was originally released on the ZX Spectrum in 1984 and was developed by Matthew Smith. It is the sequel to the hugely successful Manic Miner. The game sees you taking control of Willy, who has been tasked with cleaning up his mansion after a huge party. However, things are never that simple and you must guide Willy through a series of challenging levels, avoiding traps and enemies along the way. As well as the Speccy, Willy found his way to multiple platforms – even the Tatung Einstein got one!