Nintendo is asking invited testers to keep their mouths shut about what they see and learn. The mysterious Nintendo Switch Online test that begins later this month comes with a warning for people chosen to participate: Please don't disclose or discuss it at all.

As people continue waiting patiently for official news of the Switch 2, Nintendo has taken the unusual step of rolling out a public testing program for a secret new piece of Switch software. It filled up in seconds as players eagerly signed up to be guinea pigs for whatever the Mario maker is cooking up.

Nintendo is inviting people to apply to play test a new feature for Nintendo Switch Online — though the company isn’t specifying what the feature is. Considering that this company just launched a gesture-controlled alarm clock,