By sheer accident I noticed that if you use the cheat code "setmindtrick" to a value greater than the implied maximum of 3 you can not only influence your opponent’s behavior, but you can also literally "possess" and control their body.
So for example in the battle with Alora, you can take control of her body and force her to commit suicide without taking any damage to yourself.
This appears to be an undocumented feature which has never been mentioned before which is unusual for a game that is nearly 10 years old.
Good luck and MTFBWY