Beat me too it! Blue Screen of Death - a wall that freezes and blinds all players and can only be countered by force-reboot. Found only in the most popular rpg game that's also played by non-rpg-ers and is derised by hardcore rpg-ers!
Additonal power - Also causes infinite ping in mmorpgs
Also Hong Kong, not really an invasion, but definitely not a welcomed rule of power after the UK left.