It seems Astro's pretty good at martial arts in the 2003 episode. In a few panels in the old manga he makes references to "knowing" ninjitsu and basic Judo. So what martial art would be the 2003 Astro's mainstay fighting style?
Yes I remember in episode 2 "Robotball" Astro kung-fu kicked the shades off of Harley. Awesome. In another episode Uran thought Daddy Walrus was a ghost and kung-fu kicked him. Go, Girl, Go! Don't worry, they later made friends.
Awesome. In another episode Uran thought Daddy Walrus was a ghost and kung-fu kicked him. 
