Grappas were fun. I like the experimentation of movements to results. After playing for awhile, you start to gather a library of movement/images in which you can utilize for stringing together in order to create larger images. My favorite program was the blue grappas partially because I like the colors but mostly due to the stop function. The other grappas you always had the challenge of incorporating the exit of the line from within the boundaries of the image. Still good fun.