in a major plot scene, a character does the fantasy version of shooting themselves in the head. DETAILS (SPOILER!!): this is a plot-heavy cutscene towards the end of the flashbacks, in the ice age, when dana is at the temple and found by the lacrimosa’s guardians. when dana collapses to the ground, the suicide imagery is over.
one character is introduced as a law enforcement officer. he is immediately taken at his word and trusted by the cast, and his actions are consistently shown as morally correct.
if you go underwater before unlocking an item that allows you to breathe underwater, you will run out of air. this is non-permanent. in addition, at the beginning of the game, there is a shipwreck and people are shown falling into the water.