Also you can Edit the Random Encounter enemy so you will fight whatever enemies you chose. and you can create a bunch just to challange yourself.

Like if you were up for a challange you could go up against a Calculator with every Spell and Super high Speed like 50+

then youd be getting attacked anywhere on the map like 2-3 times before you even get a turn. Its Possible to make fights that you Cannot Win using Game Shark.