We present in this paper the crucial components of "Mr.ArmHandOne" project. We shall discuss topics concerning the robot architecture; the robot building process, including the mechanics and electronics solutions to the robot structure; the description of a dynamic neural network for processing the raw data coming from the sonars; the local map dynamic construction, and the overall structure of the cognitive components. We shall then describe ArmHandOne main task, consisting in finding and getting some object in a real non engineered dynamic world. The test-bed of our research is summarized in the proposed demo: finding and recognizing objects displaced in an unknown labyrinthine structure. The agent is initially positioned in a random place inside a maze, and his goal is to find, grasp and recover a required object, and taking it to an "Exit" position.