https://www.polygon.com/2019/1/14/18182007/nintendo-switch-online-snes-games

Nintendo Switch Online members may have more than just classic NES games to look forward to as part of their subscription. One Nintendo fan looked at the source files for the NES game collection, and says that they found code for a variety of Super NES games, including Super Mario Kart, The Legend Zelda: A Link to the Past and Super Mario World, within.

KapuccinoHeck, a modder in the Nintendo community, tweeted this weekend that they dug into NES Online files this weekend, and posted a long list of references to SNES games. The entire list is as follows: