Toys-to-life is a video game feature using physical figurines or action figures to interact within the game. There are several technologies used to make physical figurines appear in game such as image recognition, quick response (QR) codes, Bluetooth and near field communication (NFC). Depending on the technology, the game can determine the individual figurine's proximity, and save a player's progress data to a storage medium located within that piece. It was one of the most lucrative branches of the video game industry especially during the late 1990s and 2010s, with the Skylanders franchise alone selling more than $3 billion worth over the course of four years.