Knock 'Em Out

Knock 'Em Out is the eleventh badge in the Intro Challenges, after Finders Keepers. In order to obtain, one must knock at least 1 player out from the Weekly Knockout Game.

Walkthrough
Play the Weekly Knockout Game. Wait until tomorrow. If you advance, go to the challenges page and click Knock 'Em Out. Then the badge is added to your profile.

Icon
This badge has a light green background. At the top, it reads: "KO". In the middle, there is a traffic light.