Street Fighter II: The World Warrior · SNES · 1992 · Cheat Code
Effect: Allows both players to choose the same character in versus mode, which was disabled by default.
Street Fighter II's first SNES port mirrored the arcade original's restriction that prevented same-character matches. Capcom hid a configuration code behind the Capcom boot logo — Down, R, Up, L, Y, B, confirmed by the screen flashing blue — that unlocked mirror matches. The code was widely circulated in Nintendo Power and gaming magazines, and mirror matches became a popular way for players to settle skill disputes by removing character advantage as a variable. Later Street Fighter releases made same-character selection a standard menu option.