can someone help me to modify the exe file please? ^^

[Reaper]

yes, like we said. You choose a special character and fight with 7 computers.
Your own character summons another one. The new one is also controlled by the computer. Then your own character dies so that you don't have to fight and don't affect the game.
and, as DarkFirzenEX said, you can record it so that it can be played as a demo.