In case anyone’s interested, below are some Google views of Japanese game centers that don’t look very enticing, at least to me. The first three are in Osaka; the fourth is in Shimbashi, Tokyo.
Here's one I frequented semi-regularly when I lived in Tokyo. It is also maybe one of the most iconic game centers, being in Akihabara right outside the metro station with a large "SEGA" sign. Super not sketchy, mostly normal and mostly young people, no smokers, several women, even people there as couples.
The whole entertainment sector in Japan that caters to nerds aka otakus is very much not enticing to normal people. It's very seedy, and run by crime syndicates.
https://www.google.co.jp/maps/@34.6454389,135.5009173,3a,75y...
https://www.google.co.jp/maps/@34.6455462,135.4997983,3a,75y...
https://www.google.co.jp/maps/@34.6981048,135.533943,3a,75y,...
https://www.google.co.jp/maps/place/Diana+Amusement+Space/@3...