The file
Real actors photographed frame by frame, uppercuts that sprayed blood, and a finishing move you had to learn from the kid at the next cabinet. Mortal Kombat was the game parents heard about on the news.
The Fatality codes were traded like currency. The home versions in 1993 split into a censored Nintendo one and an uncensored Sega one, and the Sega one won. The ESRB exists because of this cabinet.