Carrefour and Visa approached Tandemic looking to expand their presence in the higher end hypermarket space. For the Raya festivities, Tandemic created WHOlah? an addictive game that challenges players on their knowledge of Facebook friends and rewards them with real prizes.

Over the course of two months, the app was played 138,000 times and led to 13,000 redemptions at Carrefour outlets.

One of the major activities during the Raya Season is to visit the homes of family and friends. Tandemic seized on the idea that the meaning of friends has morphed in the Facebook era. More than once, we have accepted a Facebook friend request from someone we met at an open house or an event two years ago and have long forgotten who they are.

WHOlah is an iPhone game that tests how well you know your friends by challenging you to recognize as many of your friends’ profile pictures as you can in 60 seconds. Players who successfully score high win real prizes from Carrefour that they can share with friends, ranging from Twisties to Ferrero Rocher.

The game pulls the names and profile photos of friends from Facebook and flashes them on screen with three potential names of friends. Players gain points by successfully guessing their friend’s names. They also receive a variety of badges depending on the playing behavior, such as “Early Riser” for playing early in the day.

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