Boon and Tobias originally wanted to make a video game starring Jean-Claude Van Damme, but it didn't work out.
MK1 Shang Tsung is more or less your typical elderly martial arts master that you see in a lot of old martial arts flicks.
Goro was supposed inspired by the animated Kali statue in The Golden Voyage of Sinbad.
Kintaro is named after a character from Japanese folklore, noted for his strength. Originally, he was a anthropomorphic tiger, but Midway didn't have the means to create such a costume, so they made a modified model of Goro.