Wonder 3  

Amazing Three, Wondering Three, ワンダー３, The Amazing 3

The manga "Wonder 3" is based on Osamu Tezuka's work. It follows three agents from outer space who are sent to Earth to assess whether the planet poses a threat to the universe. They arrive with an anti-proton bomb, which they call it by different names such as solar or neutron bomb. However, upon landing on Earth, they transform into rabbit (Bokko), horse (Nokko) and duck (Pukko) forms after capturing these animals as examples of life on the planet. They travel in a tire-shaped vehicle known as "Big Wheel," which can move at high speeds and is capable of traversing land, water, and air with modifications. The series tackles progressive issues such as ecological concerns and poverty for its time.