I once happened upon my brothers attempting to fly an SUV off a cliff. This was years ago, when Grand Theft Auto III was still new, but it was already easy enough to search online for the cheat code to make cars fly. After about an hour of trying to glide across a river and into a football stadium, they finally cleared the edge of the wall, landed the car inside, and broke into proud laughter upon discovering the Easter egg inside: an image of fans spelling out the name of Liberty City's football team: "COCKS".
I often think back on this when I read various theories on why we find games "fun." Some of the most popular theories of engagement come down to offering an optimal level of challenge, establishing a pleasant "flow" state. Surely there was something like that going on here, but there was also so much more, from the thrill of intentionally messing with the laws of physics to the naughty humor in the final payoff.