Neurological; Disorder, Nervous System

The goal of this clinical trial is to validate an instrumented 3D serious game to assess upper limb impairments in children with neuromotor disorders. The main questions are: * Does an instrumented 3D serious game can provide a set of validated upper limb movement features with good reliability, validity and responsiveness ? * Does the instrumented 3D serious game could provide better immersion, adhesion, usability and satisfaction than a "classic" 3D protocol, thanks to the developped environment ? Researchers will compare children with neuromotor disorders and typically developing children to assess discriminant validity of the new assessement. Children with neuromotor disorders will have 2 visits to the hospital : * Visit 1 : children will perform a validated 3D protocol and the instrumented 3D serious game * Visit 2 : children will have a clinical examination and will perform the instrumented 3D serious game Typically developing children will have one visit to the hospital. They will perform the instrumented 3D serious game.