When the Insectra Empire spaceship crashed down on the Kaamdaarn planet, closely followed The Blurrgh, Mello and his assistant arrived to greet the new arrivals. Amy Rose and Tekno the Canary were confused by this third party, so Mello introduced himself and his people as peaceful people, prompting Dark Visor and Commander Jello Wobbla to form a truce. The villains turned their weapons on Mello, but found they didn't work on this planet. This convinced the soldiers of both armies to give up on war and live on the planet.
That night, Mello spoke with Amy and Tekno before they left for Mobius. Curious about Shortfuse the Cybernik, Mello began to ask how Shortfuse removed his waste products, the embarrassed Cybernik revealing he had a filter system. Mello may then have provided Amy and Tekno with a spaceship.
- Mello's name is a pun on the term "mellow".
- Mello is not to be confused with a character in the Archie Sonic comic of the same name, this one being a bee who was Charmy's friend until he died of Lemon Sundrop Dandelion poisoning.