That's Germany I think? I seem to remember playing Carmageddon with green blood and that was some kind of German mode?

Korea definitely has non-red blood in plenty of games. PUBG has blue blood in Korea for example.

https://img.gurugamer.com//resize/640x-//2021/03/29/the-red-...

https://www.reddit.com/r/PUBATTLEGROUNDS/comments/7z0aot/how...

Carmageddon 64 in Germany also replaced the zombies (which were already replacements for pedestrians) with dinosaurs. Truly bizarre.