These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Deus ex Machina: The reveal that Deaf has been playing with the clock can come across like this to some.
Fridge Brilliance: White and Brown were the only two of the group who were specifically asked to apply. White and Brown are also the main instigators of conflict, meaning they were chosen and invited specifically to cause tension which would give the applicants a chance to prove themselves.
Moral Event Horizon: many characters cross this - or consider other characters to have crossed it - at different points.
Black is the first, in a seemingly professional environment, to become violent, knocking White out, tying him to a chair, and gagging him.
Brown steals White's medicine, which White needs in order to live. Though Black was perfectly willing to withhold the medicine, just to see if White was faking, Brown knocked the pill down the drain when White began going into genuine convulsions.
Brown threatens Dark with torture, even tying her up and slicing her thigh open at one point.
White takes the guard's gun and threatens to shoot the remaining candidates if they don't leave and forfeit.