You can change the name using PKHex. You can't change the gender or the photo with PKHex, though.Is there a player gender change/rename code? Not happy with my character choice, but I'm too far to restart.
Another alternative would be to backup your current save, restart, and then use PKHex to set your ID/SID to the same you had before and transfer all your pokemons to the new save. Every pokemon you caught/breed would then still consider you as the original trainer, allowing you to breeze through the game up to where you are.
The other way around. Most, if not all, of the cheats in the current SUMO NTR plugin were created as Gateway/Gameshark cheats and then ported to NTR.out of curiosity are these cheats converted from ntr