DEMO update instructions
1 Added 2 characters and part of the plot,
2 Add some new areas
3 Fix the AI of BOSS occasionally wandering in place
4 Step on the glass to make a sound will attract BOSS
5 Perfect Hide Mode
6 Add the novice guide by pressing TAB
7 New zombie models and mid-shot feedback effects
8 Zombie mode adds a gun
9 Fix some bugs
10 Press ZX to observe secretly
11 Add the option to delete archives in the main menu