I was given a Sega MegaDrive I guess some time in 1989 in Hong Kong, I immigrated in Oct 1991(or 90) and brought it with me. I had Sonic, Shinobi, Streets of Rage, Golden Axe etc. I remember going to school and another kid had a Sega machine and I went over to play and I saw the graphic and thought “that doesn’t look as good as mine” but I had no idea why, it was a Sega Master System. I also remember another kid going on about Commodore 64 or something being amazing, then I saw it and it had tapes and what was HUGE loading times and thought what is that? I had no idea at the time what I had, I just thought it was different consoles.
I must have been the only child in the UK with a Mega Drive at the time and a 60hz one too, running sonic on it was 20% faster than the subsequent 50hz EU version. The speed was obvious. By the time it came out here, I’ve already had my Mega Drive about 2 years.