"Hey! Look at that waterfall! I wonder if there's a cave behind it. You should always check behind waterfalls for caves."
— Li Li Stormstout, World of Warcraft
"WALK INTO THE WATERFALL."
— Old Man, The Legend of Zelda
"I swore I saw something... Behind that rushing water..."
— Echo Flower near the falls, Undertale
"Every game, there's something behind the waterfall. Or there should be. And this game does not have that, so far. You have to hide a secret behind the waterfall. I don't care what game you are; even if you're a space game, have a waterfall, hide something behind it. As a gamer, my instincts tell me to do that, and I'm satisfied when I'm right."