Nintendo Switch Online Adds New NES and SNES Games on September 23; Donkey Kong Country 2, Mario's Super Picross, and More - Niche Gamer

Nintendo have announced [1, 2] the next games joining the Nintendo Switch Online catalog of NES and SNES titles;

Nintendo Switch Online: Game Boy, NES & Super NES - Official

Donkey Kong Country 2 Coming to Switch Online! + September Trailer

NintendoQuest

News - September, 2017

History of Nintendo, Nintendo

Mario Kart 64 - Super Mario Wiki, the Mario encyclopedia

History of Nintendo, Nintendo

History of Nintendo, Nintendo

The 'Shroom:Issue XLV - Super Mario Wiki, the Mario encyclopedia

52 Games. 1 Year. 2021., Page 6

Nintendo Switch Online: Game Boy, NES & Super NES - Official