https://en.wikipedia.org/wiki/Crazy_Kong
Like the original game, Crazy Kong had bootleg copies under such titles as Congorilla, Big Kong, Donkey King, and Monkey Donkey.
(Also: "Although commonly believed to be a bootleg version, the game was officially licensed for operation only in Japan when Nintendo couldn't keep up with demand at home" and "Falcon breached their contract by exporting the cabinets overseas which led Nintendo to revoke their license in January 1982")
(Finally: "As Nintendo released Donkey Kong Jr. (a Donkey Kong sequel), Falcon developed and published a cloned-sequel as well entitled Crazy Kong Jr, also known as Crazy Junior,[2] but unlike the previous one, it was unlicensed by both Nintendo and Nintendo of America.")
(Otherwise it seems most fake arcade Donkey Kongs were just bootleg copies)