Other than it referencing the fake credits from Donkey Kong Region as noted over, the start of the second stage of the ultimate battle with King K. Product sales were about 50 % of Odyssey's launch income; an analyst attributed this to Nintendo releasing Bananza nearer into the console https://donkeykongbananza86531.blogdal.com/36941698/the-ultimate-guide-to-donkey-kong-bananza