The LeoVegas mobile casino operator has launched an imaginative new marketing promo in London, inviting the public to take a walk on the wild side by capturing a lion on the loose.

The lions are in the form of images of the company’s distinctive Leo the Lion logo sprayed as street art onto a number of dirty streets at the entrance to 15 tube stations around the city, using ‘clean advertising’ which helps remove dirt from London’s streets.

Passers-by lucky enough to spot Leo are being asked to tweet pictures to @LeoVegas using #LuckyLion. Five lucky winners will receive an iPad mini.

Shoppers at Westfield London were also be given the chance to win, after LeoVegas.com hosted a life-size Wheel of Fortune in the shopping centre. Members of the public were encouraged to stand on a giant Wheel of Fortune board. If the spinning wheel lands on their chosen colour on the board, they will walk away with shopping vouchers.

The street promos have been designed to the company’s new television advert, says Shenaly Amin, UK country manager at LeoVegas.com.