“…Based on a number of proposals carried out, a main graphical user interface of the game was defined, as seen in Figure 4, where such activities were included as: definition of the theme, elements of interaction, characters, learning strategies, communication channels, input and output variables of the system, and difficulty levels, among others. The psychological effect that different colors that can have on children also intruded in the design of the interface (Meier, 1988;Tabart et al, 2009), so that colors such as green (represents harmony and sense of calm), blue (produces tranquility), and red (stimulates action, energy and vitality) were taken an account in the user interface of game.…”