Nowadays, motion games play a significant role in training, education, and entertainment fields. Children enjoy feeling that they are moving forward and improving their performance in sports, and the learning effect factor can jeopardize these positive feelings. In this study, we evaluate the impact of learning effects on a new children's motion game called Pikkuli using eye-tracking glasses. Forty-five children (5 to 11 years old), who have never played this game before, participated in this study. The paper evaluates the learning effect factor on children's performance and visual behavior on three motion game challenges (difficulty levels). We collected information regarding time completion, total fixation, average fixation duration, and visible effort by eye-tracking glasses. Results show that difficulty levels of the game can significantly impact children's performance and visual behavior. We also found out that in this children's motion game, the learning effect factor can lead to different production and visual response.

Keywords : Motion Games, Eye Tracking, Human-Computer Interaction, Human Centric Design.