Mega Man V (Game Boy) weak to specific weapon, the player is encouraged to complete some stages before others. These bosses are known in game as "Mercury", "Venus", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune", and "Pluto", named after the first, second, fourth, and fifth through eighth planets in our Solar System. Pluto was, at the time the game was made, considered a planet, unlike from 2006 and onwards. Terra is named for the Latin word for Earth. Defeating some bosses will allow the player to access Mega Man's robot dog Rush, who can transform into useful "Coil" and "Jet" modes for easier stage navigation. "Mega Man
Minor planet asteroids. A minor planet seen releasing gas may be dually classified as a comet. Objects are called dwarf planets if their self-gravity is sufficient to achieve hydrostatic equilibrium and form an ellipsoidal shape. All other minor planets and comets are called "small Solar System bodies". The IAU stated that the term "minor planet" may still be used, but the term "small Solar System body" will be preferred. However, for purposes of numbering and naming, the traditional distinction between minor planet and comet is still used. Hundreds of thousands of minor planets have been discovered within the Solar System and thousands