Gregory
Gregory is the little green insect looking thing that lives on King Kaioh's planet just off Snake Road. He is part of the test to pass King Kaioh's Training. With Gregory's test, you must carry a mallet around while Gregory flies at an astonishing speed where you can't even see him. You must hit him with the Mallet while he is flying FULL speed. It would be impossible for any normal human to do it, but for Goku, he did it with ease. He stopped while running around cause Gregory was starting to catch up with him behind him, so he stopped and turned around and when Gregory came flying up behind him, he stopped as fast he could, and Goku tapped him on the head with the mallet to pass the test. I guess Hand-Eye coordination.
