>>12133301
Not that I'm aware of. But...
When you challenge someone and they say the rules are different and it'll change, cancel then challenge them again. After 5-10 tries they'll only ask if you want to play without mentioning the rules, and the rules won't change.
In Balamb town in the docks parking lot there's a guy kneeling down, if you challenge him it changes the [local?] rules to just open (maybe open + diff). There are probably a few other tricks.
I'll probably continue my playthrough tonight.