Back in the days, starting from 1993 (6 years old) when I was introduced to my 1st arcade game ever Street Fighter 2, till around 2005, Arcade centers were a big thing in my country, Albania. We used to have a lot of arcades having a large amount of recent games at the time,& I got to play most of the best.
Except Fighting games which I was some kind of a Prodigy Kid (since 6 years old at sf2) lol, I've 1CC-ed:
Outzone (3 times in a row, as the game kept going on repeat after the ending, but CRAZY Harder)
Sunset Riders
Cadillac & Dinosaurs
Punisher
Metal Slug 1
Snow Bross
Silent Dragon
X-Men
Shock Troopers 1
Pleasure Goal & countless others I don't remember.
There was a puzzle game whose name I forgot.
Basically like Miss World '96 Nude, but no uncensored stuff, the game was ridiculously fun & after finishing it, the game would give a free Credit to restart the game on a higher difficulty. So if one would have nothing else to do, that game was the solution. Play till u get tired..
Good 'ol times