In the olden days, programmers could hide something in the code of a video game and be confident that it would never be revealed.
But with the advent of the Internet, players are sharing tips, hints, secrets, hacks, and cracks at a breakneck pace.
Many of the hidden secrets on this list were found simply by bizarre brute force.
Take the hidden announcer in the 2001 Game Cube game Wave Race: Blue Storm.
That game turned out to be the first Zelda on the Super Nintendo in 1992.