This paper presents Kin-LDD (stands for Kinaesthetic Learning Difficulties Diagnosis), which is a tool that supports the special educators during the assessment process of children's learning difficulties. Children using Kin-LDD, instead of participating in a tedious and extensive process, they are playing a game. The tool is using a natural user interface for the children-computer interaction, combining gestures and typical mouse usage. Kin-LDD provides a set of activities, by presenting the material in text, images, and sounds. Kin-LDD is also available to school teachers and parents, for the early identification of learning disabilities before engaging a special educator, but mostly is a tool for special educators to include the 'fun' factor into the diagnostic process. The tool offers activities for spatial orientation, time orientation and storyboard sequencing and reports a set of key performance indicators, related to each child's performance in these activities, to the special educators helping them towards the diagnosis.