The vast majority of videogames inherently demand a suspension of belief. In a medium where gamers spend so much time gunning down aliens, rescuing the entrapped maiden from the evil sorcerer or smashing cars into walls only to see them replaced on the road near-unaffected, perhaps it would seem sophistic to focus on particular idiosyncrasies that they have long since accepted.
And yet, there are some elements which are so fundamental to games nowadays that people take their almost slightly comical peculiarity for granted. Have you ever wondered why shooting games are so obsessed with explosive barrels? Or where the double-jump originated, and who conceived such an outlandish concept?