Mashin Hero Wataru

魔神英雄伝ワタル

After school, ten-year-old Wataru doesn't go straight home--instead he slips into an alternate world where he is the pilot of a huge super-deformed comical robot and fights to deliver the world from the oppression of an evil magician. This series proved so popular in Japan that it was later remade as Chou Majin Eiyuuden Wataru.