It was the equivalent of handing an iPhone to a caveman. But honestly one of the things that gripped me so much was a completely different look at Japan. Up until then all I'd seen was either the samurai type shit from the feudal years and the almost cyber punk-esque style of Tokyo. 1980s Yokosuka just looked... "normal". It was a hell of a lot more relatable than any setting I'd seen on a game. Even more so than GTA III when it came out. Gettin told off for stayin out late, nippin to the market street to go to the shops, hoppin on the bus, goin to work at a regular job, all of it felt much more compelling to me than the almost montage-like "best of" approach that games, films, etc tend to take.
By living each day as it came rather than segue from cut scene to action set piece was the most immersive experience I'd ever had at that point so I felt engaged on an almost astronomical level. It's everything I never expected a video game could do on my lifetime, and as with a lot of people on here it had a huge influence on my life as a whole. It truly resonated with me in a way I assume it does for a lot of fellow Mancs, Englishman, and I suppose Brits in general. The scrotes tryna kick off in the park, shit weather, the drab greys... the only things I found ridiculously unrealistic in that first game was the fact you couldn't eat and that the busses came on time (though I've since found out that it's kinda the norm in Japan)
Also the graphics n music were pretty fuckin mint n'all.