One of the long-standing traditions for some users is to name yourself or your rivals something naughty to provide endless amusement in the older Pokemon games. This tradition has now been brought to a close in the recently released Pokemon FireRead and Pokemon LeafGreen. Kotaku tried to name its champion and some of the rivals naughty names and found the game simply won’t let you. Kotaku spent probably hours trying to get past the censor and amusingly walked away largely unsuccessful. Pokemon FireRed and Pokemon LeafGreen are available now on the Nintendo Switch and Nintendo Switch 2.
Pokemon FireRed & LeafGreen censor naughty names inputted by player

My birth name is F-Face GiggleTits and if I can’t input that I’ll be suing
This is a really stupid thing to censor. As far as I recall, rivals are only part of the single-player component of the games- they’re never brought up during trades, battles, or other communications with other players, so who outside of the user’s game file is going to see what they named their rival?
I could name my rival Btchballs McDckles and you’d never know unless I told you.
…Kinda forgot asterisks cause italics, should’ve used another character for that.
Could be just the Switch (2) keyboard software that has the censored words list baked in?
I need a Jogglypuff. Jigglyhoe. And my rival is named. Turdboy