#40 Nintendo mascot Mario made his first appearance in the 1981 arcade classic, Donkey Kong. However, the moustachioed plumber was known as Jumpman in the game. Mario's green-dungareed sibling, Luigi, made his debut in 1983's Mario Bros.
#41 Adding an extra competitive edge to gaming, Bally/Midway's 1976 arcade submarine shooter, Sea Wolf, was the first example of a 'high score' appearing in a game. The stakes were really raised in 1978, however, with Exidy's Star Wars inspired, Star Fire, which let players enter their initials for display in a high score table.
#42 Stern's classic 1980 arcade shooter, Berzerk, has the unfortunate honour of being the first game to be linked with the death of a player. In 1981, 19 year-old gamer Jeff Dailey died of a heart attack shortly after playing the game.
#43 The first game to be banned in the UK was the vehicle versus pedestrian muderathon, Carmageddon. The ban was later overturned when the pedestrians where replaced with zombies and the blood changed from red to a much more palatable green.
#44 The developer behind the Quake, Doom and Wolfenstein series, id Software, was the first independent game developer to be awarded an Emmy. It picked up its prize at the Science, Technology & Engineering Emmy Awards ceremony earlier this year for its "technological leadership in rendering breakthroughs with the QUAKE technology".
#45 Not only was Pong Doubles, released by Atari in 1973, the first arcade game to introduce four-player excitement, as a follow-up to the 1972 smash-hit Pong, it was also the first gaming sequel.
#46 Sega's dodo Dreamcast console was the first gaming console to feature straight-out-the-box online functionality. Shame the World wasn't ready for it back in '98.
#47 The first dedicated gaming magazine was Computer & Video Games, which was released in the UK in November 1981.
