I want to get a tutorial for the first level together once it is completed. Unfortunately we are early enough in development where things change quite often and making a tutorial that might get scrapped later on in development doesn't work very well.
We have a system originally where you could collect 6 tapes per level to unlock a lewd. Skyb0y recently decided to disable the function that shows how many tapes were collected on the level. It is a priority of mine to get that back XD.
Don't worry about the vent.