Dragon King: The Fighting Game was an unfinished low budget 3D fighting game, and was the first in a planned series of fighting video games. The game was developed for the Nintendo 64, where it was to make unique use of the joystick on the controller. After deciding to use Nintendo characters to give it a more proper atmosphere on the Nintendo 64, the game later became Super Smash Bros.

In 2022, Masahiro Sakurai presented in his own YouTube Channel some footage of the game, with the official title localization of "Dragon King: The Fighting Game".