Ok great. I got to the first real room, got the key from behind the poster, went to the door, pressed F and the key got launched to the other side of the door never to be seen again.
You did atleast run this game by some friends for some playtasting and notes, right? Like I'm not trying to be mean here but this is just really unpolished stuff that keeps hitting me in the face at every turn.
Thanks for the feedback! I'm going to look into fixing the collision on that door so items don't launch through it. Just to help me troubleshoot, are you playing in the browser or the PC version?
As a quick heads-up for that puzzle: if you have the right key, the door will open immediately when you try to use it. If it didn't open, there is still more to find in that room!