Interesting, I think this is the first time I've seen anyone claim June 2, 1981 is the Donkey Kong arcade US release date. I was trying to find their source, and it might be from this
Time article published in 2015 (and who knows what
their source was).
Usually the date is listed as July or August.
- The Universal City Studios v. Nintendo Co. judgment from 1983 says "In July 1981, the Donkey Kong game was introduced into the United States market."
- When 1UP.com talked to Don James, the NOA employee who installed the first DK machine in Spot Tavern, they wrote "Twenty-five years ago this August, the first-ever copy of the game that would become Nintendo's breakout hit product was installed in a Seattle tavern." And from page 3: "In August, just days after James joined the staff, Donkey Kong arrived."