Donkey Kong Jr. is the sequel to Donkey Kong, where the forgotten titular character has to rescue his father Donkey Kong from Jumpman/Mario. It was released on several home consoles, including the ColecoVision and the NES.
This run, however, plays the original Arcade version, more specifically, the Japanese version, as one single loop has all 4 individual stages of the game. EZGames69 goes through all four stages in record time.