Bad Piggies is a puzzle video game and a spin-off to Angry Birds. Unlike previous games in the series, in this entry the player controls the pigs, building devices that travel on land and air to find pieces of a map to find the Angry Birds’ eggs The objective of the game is to build a contraption that transports the pig from a starting point to the finish line, usually indicated by a map. Such contraptions are made of wood and iron as well as other objects such as wheels, soda bottles, umbrellas (to increase air resistance), motors, fans, TNT, and balloons.