Venus vs Mars

When Venus accidentally hits Mars with an asteroid during a casual game with Earth, it sparks a heated argument between the two planets about Mars's moons and Venus's lack thereof. Earth, trying to mediate the conflict, decides to settle their dispute by creating an elaborate competition called "Who's-a-better-friend-to-the-Earth."

Fun Facts:
"Asteroid Dodgeball" is misspelled as "Astroid Dodgeball" in this episode.
An astroid is a mathematical term referring to a hypocycloid with four cusps, which resembles a four-pointed star. Hypocycloids are curves traced by a fixed point on a smaller circle rolling inside a larger circle.
The episode marks the first time narrator doesn't make an appearance on the episode's sponsor section.
This episode is the first one to feature an anime-style fighting.
This is one of the only episodes where every planet makes an appearance.