InsideSocialGames.com reports that GameDuell social game "Bubble Speed is a Pop Hit with Facebook Gamers". "The title is currently the publisher’s most heavily used" and features 1.5 million monthly active users.
Launched one year ago, Bubble Speed resolves enthusiasm among the players. They love to pop as many bubbles as possible within 60 seconds. Different boosts can help to increase scores to new heights.