COTOCATA is an educational toy for communication skill through a “game” with two players. Player 1 tells what he / she sees in a picture card hiding from Player 2’s eyes. Player 2 assembles blocks in the figure associated with Player 1’s words. The game makes the players trying to choose the most appropriate words and to understand the right meaning from the verbal expression. The purpose of the game is to remind the players of the essential role and the importance of communication while enjoying the discrepancy and unexpected results of the assembly.