Developer: Imaginative Systems Software

The site credits the Atari 2600 version of Donkey Kong to Imaginative Systems Software. The cartridge itself was designed and programmed by Garry Kitchen for Coleco, which held the home rights to Nintendo’s arcade game. He had roughly 90 days and a 4K cartridge, so two of the four arcade screens were left out, but the barrel jumping made it in. It sold very well, and Kitchen later made Keystone Kapers at Activision.
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