Differences between regions by Darius Gaiden

[MathU]

Only translations. In fact as a general rule, once arcade games switched towards modular systems like Neo Geo, Taito F3, etc. over traditional PCBs unique to every game, and started favoring software-based service menus over hardware-based DIP switch control, developers tended to stop putting effort into meaningful differences across regions.

[Bassa-Bassa]

Only translations. In fact as a general rule, once arcade games switched towards modular systems like Neo Geo, Taito F3, etc. over traditional PCBs unique to every game, and started favoring software-based service menus over hardware-based DIP switch control, developers tended to stop putting effort into meaningful differences across regions.

I always thought it had more to do with the US distributors becoming more mature with the time (not enough to stop censoring blood and sexual jokes till the end, though.)

[MathU]

I'm not sure if it actually had anything directly to do with modular hardware and service menus or if it's merely correlated with their adoption, but that's the observable trend anyway.