Sign-ups still open to new registration
The Behemoth has announced the start date of their closed beta for Battleblock Theater, which will commence at the end of this month. There's a new trailer celebrating this, and you'll be happy to know that you can still sign up to get into the beta by visiting the registration page.
So, you should go and do that. This way, when you're playing Battleblock Theater, people can look upon you with envy and dream of the day when they too will experience the awe and majesty you already know.