Whats AI.How can i edit it?
AI is Artifical Inteligence of Computer Science.
Basically what it means is that; by Programing AI your giving a computer Artifical Inteligence so it knows what to do. In this case the soccer teams in your game will act more pro than normally becuase your furthering it's computer AI Development.
Editing it, I am not sure but you may need to edit it through code langluges of what the game uses or make adjustments to it. You may have to do it by hand,
If you know what you are editing though a great way to get into the ISO File would be gcrebuilder however I'm not sure if the application would read it correctly (Since it's a Wii Game, not a GameCube.) But it may be your best alternative to finding where the AI Diffculty is.
But again it's for GameCube Games, not Wii. It should so the files of the game disc hopefully.
Smash Box (That's what I think it's called.) Can also help but it's normally used for just replacing textures, sounds, or VO's. If you can manage finding the AI File's in the gcrebuilder you could probably reprogram a new AI File by hand (self written code, or edited.) Then once you have built your new one you can replace it through gcrebuilder, and save the new ISO File to make the game more diffcult.
But if you want to completely revamp the game with added textures, and so on to add a "level 15" diffculty option then that would require some further modding knowledge and learning how to trick the game to load the mod files, and not the regular ones on the game disc. (If you choose modding route you would have to mod everything through an SD Card instead of an ISO File.)
It's complicated to explain. I could just write instructions showing you how if you want (Replacing textures, replacing the files, so fourth.) Note that I don't know how to completely mod it through an SD Card, or show where to find the AI, becuase I cannot read code as well.
The AI should either be built into the game, or it should be in a seperate file.