Mortal Kombat II is a fighting game originally produced by Midway for the arcades in 1993. It was later ported to multiple home systems, including the MS-DOS, Amiga, Game Boy, Game Gear, Sega Genesis, 32X, Sega Saturn, Super Nintendo Entertainment System, and PlayStation only in Japan, mostly in licensed versions developed by Probe Entertainment and Sculptured Software and published by Acclaim Entertainment (currently distributed by Warner Bros. Interactive Entertainment). It is the second entry in the Mortal Kombat series and is the sequel to Mortal Kombat, improving the gameplay and expanding the mythos of the original Mortal Kombat, notably introducing more varied finishing moves (including several Fatalities per character and new finishers, such as Babality and Friendship) and several iconic characters, such as Kitana, Mileena, Kung Lao, Noob Saibot, and the series' recurring villain, Shao Kahn. Following his failure to defeat Liu Kang in the previous Mortal Kombat tournament, the evil Shang Tsung begs his master Shao Kahn, supreme ruler of Outworld and the surrounding kingdoms, to spare his life. He tells Shao Kahn that if they hold the next Mortal Kombat Tournament in Outworld, the Earthrealm warriors must travel away from home to attend. Kahn agrees to this plan, and restores Shang Tsung's youth and martial arts prowess. He then extends the invitation to the thunder god and Earthrealm's protector, Raiden, who gathers his warriors and takes them into Outworld. The new tournament is much more dangerous, as Shao Kahn has the home field advantage. According to the Mortal Kombat series' canon, Liu Kang won this tournament as well, defeating Shao Kahn and his bodyguard Kintaro.[8] The game's story mode can be also finished using any other playable character, resulting in different non-canonical endings for each of them.