Stumbled upon this today. Big fan of connected toys and their potential for storytelling and play. From the site:

Suwappu is a group of characters that can take lots of different forms. Primarily (or initially), the toys seen in the film – a set of collectible and swappable figures, readable by connected devices, opening up a layer of content. The Suwappu’s head signifies his personality, and his pants signify his environment – the app produces content according to its reading of each half.