As one of three promotional titles from Burger King restaurants with purchase of a value meal, Sneak King presents an unusual presentation for a stealth adventure game. Players take on the role of "The King", Burger King's mascot, with the objective of sneaking up on famished people and presenting them with tasty burgers before they pass out from hunger.
The game features 20 missions across four different environments: saw mill, cul de sac, construction zone, and downtown area. The King can use the environments to keep the element of surprise by hiding in garbage cans and other similar areas. If the person sees you while you are trying to deliver food, they'll lose their appetite.
Each successful delivery is rewarded with a little dance from The King and cheers of appreciation from the recipient. Points are awarded based on how The King delivers the food, including proximity to the person, consecutive deliveries without being seen, and flourish bonus. The more rewarding the delivery, the higher the score will be.