https://en.wikipedia.org/wiki/Talk:C..._Kong_for_ADAM
https://en.wikipedia.org/wiki/Donkey_Kong_(video_game)
The way that these articles are presently written, it suggests Coleco never released Donkey Kong for the Adam computer as a result of Coleco allegedly delaying Nintendo's deal with Atari to distribute the FamiCom to the USA. However, that was ultimately not the case, as Atari's then CEO Ray Kassar was let go two months (August 1983) after that CES hot water moment.
Coleco's Adam version of DK does exist, and it was indeed delayed for a time, only finally getting its release in July 1984, when Warner Bros. sold off Atari to Jack Tramiel, thus rendering obsolete the original negotiation the two companies had signed with Nintendo back in 1981 (wherein Coleco was granted the license to publish the game for consoles while Atari had done the same for computers).
~Ben