Here are the changes that have been made for the demo.
Sliders in the option's menu now have numeric values
Movement speed increased
Guns now tilt on recoil
Added subtle sound effects when hitting enemies with a firearm.
Low health indicator now more visible
Changed resources amount and locations in the levels.
Kicking or shooting one enemy toward another will stagger the latter enemy.
Added sound effects to batteries and other interactable objects in the game.
Remove the stutters when enemies enter combat.