Demo v1.09 update

1, The Confirm Key can be customized now, south button or the east button.

2, Brightness can be adjusted now.

3, Melee battle mechanic fine-tuned, quicker and easier to trigger the execution.

4, Added a new crazy scene at the beginning, with some Control Guides. If you load the game you will miss this scene, unless starting a new game.

5, Added heart beat and breathing sounds for heavy injury state, feeling more tense.

6, Gunman bullet mechanic changed, it will show the trajectory after shooting.

7, Sounds and Ambient are with higher quality now. The jarring noise vanished.

8, Many other small changes.

v1.091

Got a lot useful feedbacks, and I finally found out what causes the parry delay problem, and fixed it! Now it will be triggered just at the moment you press the parry key, more fitting the intuition.