how to unlock hidden characters in crossy road

The Totem is sentient and retains some of the personality and characteristics its Monument Valley origin has. Finally, the camera itself is reoriented such that everything is viewed at a 45-degree angle, mimicking the player's viewpoint in the actual Monument Valley game. In addition, crows will randomly appear sitting on some of the obstacles and will start cawing repeatedly if the player gets within two steps' distance from them. Pressure plates will also appear at random spots on the map-stepping onto one will raise or lower some of the ruins on the map. Among other things, obstacles such as trees and boulders are replaced by monuments and ruins, trains become fast-moving blocks of concrete and rivers are now populated by floating pillars instead of logs. While playing as The Totem, the map will change to a Monument Valley-esque setting. The Totem's appearance resembles its appearance in Monument Valley-a pole four yellow blocks high, with each block having some blue lines carved into them, and the topmost block featuring two additional large white circles on the sides with a dark-coloured dot in the middle of each one, resembling 'eyes'.

How to unlock hidden characters in crossy road