Red Bull's first on-pack promotion will give consumers the chance to win prizes via a video game.

From July all 250ml cans will feature a unique code under the ringpull, allowing consumers to play the Red Bull Kart Fighter game online or via an iPhone for the chance to win tickets to the Red Bull Speed Jam in Cardiff on 3 September.l Northern Foods is also rolling out its first on-pack promotion on key biscuit brands this month, with 30 million packs of Rocky bars, Fox's Mini Party Rings, Crunch Creams and Favourites assortments carrying 2-for-1 Alton Towers entry vouchers.