1. Go to http://www.habbo.com/room/58348874
2. Score a goal and ensure the ball is in the goal
3. Click the lever (any side lever will do)
You should now have the badge, unless you was too late and someone decided to remove it (is working at 00:14 7/12/13)
P.S. This is the badge: http://prntscr.com/298ucz