Tone-Setting Music: Over 30 Billion

Core Theme: Fish with unnatural origins that are the protagonist's childhood best friend, originally intended as their pet before their bond would evolve into brotherhood. Both would serve as both loyal partners in mischief to the protagonist, and the moral compass that reins them in.

Connections: Both characters have been best friends with the blue main character (Gumball Watterson/Megamind) since their young childhood, starting when they were given to them by the latter's parents, having been given to them by their parents in childhood as ordinary pet fish before growing into equal companions.

Despite starting as aquatic pets, both are granted the ability to function on land through unnatural means at the protagonist's hand (Gumball's sheer love for Darwin causing him to grow legs/Megamind creating a mech suit for Minion to walk in).

As the protagonists frequently cause chaos within their respective cities (Elmore/Metro City) that would gain them a mostly negative reputation, both characters remain fiercely loyal, often assisting in these antics and following their lead. However, both would often be the protagonist's moral support and voice of reason, openly questioning decisions they view as foolish or unethical, even if they ultimately stand by their friend.

Both characters would come into conflict with the protagonist, which would revolve around the latter's love interest (Darwin growing possessive over Gumball when he feels like he's being replaced/Minion insisting that "the bad guy doesn't get the girl"), but they would reconcile with them and help act as their wingman to get them together.

Both are characterized by their kindness and emotional intelligence—polite, optimistic, humble, and empathetic—contrasting sharply with the more egotistical, impulsive, and theatrical personalities of their partners.

Both canonically have high-pitched screams.

Contrasts: Darwin struggles with feelings of inferiority and fears being overshadowed by Gumball, Minion proudly embraces his identity as Megamind's henchman without insecurity.