P-Brains collectible characters feature interchangeable electronic brains that let kids play mad scientist. Designed for collecting, P-Brains characters are sold in unlikely pairs — for example, Baby & Soldier. What happens when you switch personalities of a soldier with a baby? Hear the baby ask for his pacifier, switch brains with the soldier and suddenly the soldier is barking commands about his beloved binky! The P-Brains Series 1 Collection includes: Baby, Soldier, Teacher and Skateboarder. Series 2 features the following characters: Scientist, Caveman, Granny and Wrestler.