Crazy Kong

Crazy Kong is a Nintendo-licensed adaptation of Donkey Kong created in 1981 by Falcon for non-US markets. The gameplay remains relatively unchanged; however, the sprites suffered enough changes to be differentiated from the original. Nintendo had only authorized for the game to be distributed outside of the United States, but Falcon breached this agreement by exporting the game into the US, which prompted Nintendo to terminate the licence agreement in 1982.

Elcon Industries, Inc.
Elcon violated their license by distributing Crazy Kong cabinets in the United States.