Using a Pixy camera and an Audeme shield (for Arduino), Mato can "see" and "talk." When she sees the little frog, she stops and advises the froggy to move out of her way. If the frog moves, she thanks him. If the frog does not move, she turns and goes another way. If she encounters the pink ball, she comments about the ball (one of five statements--random) and chases it. If she sees the ball and the frog, she stops (not mashing the frog is higher priority).
Since this involves multiple 3d printed parts and Arduinos and sketches, it will take me a day or two to post all the files and details--but they will be provided.