Hello there!
[Some Issues]
No way to pause the game (Its a demo, can't really complain)
USE key is to kick, maybe have that as a dedicated button because kicking a locked door is impossible when it tells me to do that.
I assume you can kick doors down, as soon as I moved away and back to the door it stopped telling me I could USE to kick.
Button to switch grenades?
Map stopped working half way first level.
Vanth stopped following me or got stuck to one area because of the USE button, maybe make that a dedicated button as well.
Also I know I got Oxygen, but I could not clearly see how much I have left so I died from it.
I did enjoy the demo, keep it up!