indeed it does but if memory serves correct if you play in one area that has the randfom rule and win...then go to another area and play and win...but make you say say to play a combined rules games.....depending on the prvious regions rules a rule will either be abolished or added....

i.e.

Balambs rules

One
Open
Random

Galbadia Rules

One
Open
Plus
Random

If you pl galbadia first then balamb you should have a 50/50 chance of either spreding Plus rules or Abolishing Random....

Save your game beforwe attempting this as i could be wrong...but thats it as far as i remember....if i dont work load and retry...

come back and let us know