Abstract. In the last decade, several researches have promoted the use of serious games in the medical field. Such solutions are generally played with ecological interfaces in order to attract elderly. It is unclear whether or not these controllers make their respective games more immersive. In this paper, we report the first step of our ongoing research toward the understanding of the relationship between the use of tangible interface with ecological gesture recognition and the immersion level of a serious game adapted for individuals affected by Alzheimer's disease. This first step of our project aimed at investigating the impact of such an interface with healthy people. Initial results suggest that the use of such a controller does not impact the immersion score of the game. Nevertheless, findings indicate it may increase the immersion score when the player has not an extensive contact with video games.