The jumpscares have nothing on the sustained anxiety at the end there...
I did get a bit of motion sickness from the movement, but overall a very fun little experience.
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I am not 100% sure, but it usually only happens with first person type games, especially with narrow field of view and/or head bobbing and motion blur. Motion blur is the worst for me, but I suspect in thus case it might have been the bobbing of the chicken as I was running away the end.
My ears basically disagree with my eyes, which causes motion sickness like feelings.