Nintendo has announced that it's taking applications for thousands of participants to test out "a new feature" coming to Switch Online — but no one knows what that is.

The playtest period will last between October 23 and November 5 and those who have an active Nintendo Switch Online + Expansion Pack membership are eligible to sign up. Applicants must also be at least 18 years of age, and have their Nintendo accounts registered in Japan, United States, United Kingdom, France, Germany, Italy, or Spain.

Nintendo has launched a search for 10,000 testers, offering them first access to a mysterious new Switch Online feature. While the announcement provides few details and offers no concrete hints about what the feature involves,

Nintendo has announced it will perform a test called the 'Nintendo Switch Online: Playtest Program' which is related to a "new feature" for the online service available on the Switch.

It's not perfect, but it's got the best mix of previous games and is an instant family game pick-up for the holidays.

The series mostly kept up a basic standard of quality, although to diminishing returns, throughout the 2000s GameCube era, but by 2007’s Mario Party 8 for the Wii, the novelty had worn off. What followed was a decade of meandering culminating in 2018’s Super Mario Party for the Switch,