Breakthrough Hit: It was this game that brought Nintendo into the video game industry, after the company spent many, many years producing other things.
No Export for You: In a bizarre twist, the original Donkey Kong arcade game was written by Ikegami Tsushinki, a manufacturing company which developed the game for Nintendo. Unfortunately, there was no contract between Ikegami and Nintendo for the source, so Nintendo does not own the original arcade game code. This is why Nintendo cannot sell the arcade version of Donkey Kong for its consoles, but are free to sell remakes and updated versions instead.
Port Overdosed: Virtually every console and computer of the era had Donkey Kong released for it, and so have many since. Among 1980s arcade games, its omnipresence is surpassed only by Pac-Man.