Despite Nintendo’s warning to Switch owners not to breathe a word about its mystery online playtest, players have posted screenshots, gameplay videos, and even streamed it online now it's live. Earlier this month,

Nintendo originally drummed up excitement about this playtest by mentioning how it would be tied to a "new feature" for the Switch Online service. It was also promoted as a "first-come, first-serve" program, and is limited to select locations around the world, so not everybody can participate.

The mysterious Nintendo Switch Online playtest announced a couple of weeks ago has leaked, and, well, it's not GameCube games for the Expansion Pack.