Im sad to say that I felt that the game was not fully finished and as a result didnt feel good to play.
The "F to pick up" only worked occastionally and when it did the prompt remained, more over there was no way to defeat the enemys making the knife practically pointless. There was also no way to leave the game without alt+tabing out and closing it that way practically traping the player in the game.
However i felt that the idea/concept was good, a first person platformer sounds really fun it just needed more time to be polished.