killing Liu Kang a second time, Raiden discovers Kronika has manipulated them into fighting across multiple timelines as she fears their combined power. Despite her interference and attacks by her minions, Raiden gives Liu Kang his power, turning him into a god of fire and thunder so he can defeat Kronika. In the Aftermath expansion, it is revealed that Liu Kang inadvertently destroyed Kronika's crown, the item needed to restart the timeline. Her defeat also revives Shang Tsung, who was absent in the base game due to his imprisonment by Kronika. To recover the crown, Liu Kang sends Shang Tsung and other Earthrealm heroes back in time to obtain it before Kronika, though Shang Tsung manipulates events so that he comes into possession of the crown. At the end, the player can choose to start a new timeline with either Shang Tsung or Liu Kang. Characters Through its iterations, the series has featured scores of player characters, some of them becoming mainstays, such as Baraka, Cassie Cage, Cyrax, Ermac, Fujin, Goro, Jade, Jax, Johnny Cage, Kabal, Kano, Kenshi, Kintaro, Kitana, Kung Lao, Liu Kang, Mileena, Motaro, Nightwolf, Noob Saibot, Quan Chi, Raiden, Rain, Reptile, Scorpion, Sektor, Shang Tsung, Shao Kahn, Sheeva, Shinnok, Sindel, Skarlet, Smoke, Sonya Blade, Stryker, Sub-Zero and Tanya. Among them are Earth's humans and cyborgs, good and evil deities, and denizens of Outworld and other realms. Furthermore, starting with Mortal Kombat vs. DC Universe, which featured several DC Universe heroes and villains, all subsequent games have included guest characters such as Freddy Krueger from A Nightmare on Elm Street franchise, Kratos from the God of War franchise (exclusively for Play Station 3), Jason Voorhees from the Friday the 13th franchise, the Alien, Leatherface from the Texas Chainsaw Massacre franchise, the Predator, the Terminator, RoboCop, Spawn from Image Comics, John Rambo and the Joker from DC Comics, who was previously in Mortal Kombat vs. DC Universe. Development Origins Mortal Kombat started development in 1991 with only four people: Ed Boon (programming), John Tobias (art and story), John Vogel (graphics), and Dan Forden (sound design). According to Mortal Kombat actors Richard Divizio and Daniel Pesina, the first game actually began as a ninja-themed project by John Tobias (a young new employee of Midway Games at the time) and them as well as Carlos Pesina, however their pitch to Tobias' boss Ed Boon was rejected by the entire management of