Y'all jump on the bandwagon for Travis one time and now everyone's gonna be a Mii costume.
You're going to have to give me a few hours of dedication if you want me to give you a bootleg Smashboards article, but the gist is that Mortal Kombat isn't banned in Japan as people online, and for some reason Wikipedia still, claim. You can get MK11 in Japan, it just isn't
localized. Mortal Kombat is a juggernaut of the fighting game genre and influential to many other game series. Easiest one off the top of my head is SamSho, it wouldn't exist without MK. Sometimes I question whether people see Smash as a celebration of gaming or a celebration of gaming from Japan specifically to pretend other games don't exist.