so i dont know but i dont seem to be able to unlock the other videos also appartly rapid clicking the vent kills u ??
You can unlock videos by finishing a night using a plushy for that character. There are multiple videos you can unlock with a plushie, but only one per successful night. You buy the plushies at the store when they are available.
Also, I think you get one for playing the minigame, and another for collecting the tapes/breaking the lights. Not %100 sure about those, though.