1- added sensitivity and volume settings

2 - created gun and gun upgrade pickups

3 - added 4 mini levels with the first level and the boss level

4 - added different health bars for boss, guards, normal enemies, and player

5 - added rage mode for boss and guards, they may have an upgrade for their shooters, be invincible for a few seconds then they are resistant to damage; meaning they take 1 dmg/0.1 second.

6 - added ability for the player that becomes full every 3 minutes( there is still a bug with it but that will be fixed in a later update since it's not game breaking), killing any of the enemies will boost the ability charge by 0.3 seconds. what the ability does is that it gives the player infinite ammo and makes all of his guns automatic for a few seconds.

7 - added a script that unlocks each level in the level select menu when you reach that level

8 - added new projectiles for boss, guards, and player

9 - fixed multiple bugs in the original code

you can check the code here: https://github.com/Ahmed-Jarir/3D-FPS/

and if you find any bugs or anything game breaking please inform me

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