On a peaceful day, the Toons relax themselves, from Cuddles and Flaky playing with a ball to Nutty being a hyperactive sugar addict as usual. Kirby in particular gazes at the sky while sitting in a grass field. A familiar fruit then drops from a tree and Kirby decides to give it a taste. Afterward, Kirby transforms into Hypernova Kirby and starts swallowing a huge amount of air. Flaky and Craig are first to be sucked into Kirby's maw. Meanwhile, Lifty and Shifty the kleptomaniac raccoons steal a bunch of junk, when suddenly Shifty is pulled away by Kirby's suction. At Kirby's mouth, Shifty tries to save himself from his closing jaw, but this was unsuccessful as the pink menance chomps Shifty into an oblivion. At Pop's house, the survivors hides from Kirby and are filled with dread, especially Chef Pee Pee and Toothy. However, Disco Bear seems oblivious at the dangers loaming outside as he dances without a smidgen of fear. Presumably from hearing Disco Bear's grooving alongside the screams of Chef Pee Pee, Kirby wraps his mouth around the chimney and begans inhaling. Several of the Toons who resided in the house were consumed by Kirby, including his rival King Dedede, who tries to latch onto a door but fails. Kirby celebrates his meal with a victory dance, only for the closing iris to suddenly suck him up like a vaccum and crush him.
"The Power of Supernova" provides examples of:
- Breaking the Fourth Wall: The closing iris sucks in Kirby and compresses his body into a bloody cylinder at the end.
- Cruel and Unusual Death:
- Shifty is slowly crushed to death in between Kirby's teeth.
- King Dedede has his internal organs torn from and sucked out his body.
- Debut Queue: Most of the supporting cast are introduced in this episode.
- Dissonant Serenity: While the survivors are hiding from Kirby, Disco Bear inappropriately dances with a sly expression.
- Establishing Character Moment: Several for most of the regulars.
- Tweek Tweak's paranoid demeanor.
- Nutty's love for sweets.
- Lifty and Shifty's leisure for stealing items.
- Get A Hold Of Yourself Man: SpongeBob gives Chef Pee Pee a slap after the latter panics, and proceeds to tell him to pull himself together.
- Killer Rabbit: Kirby causes a ruckus with his hypernova copy ability.
- Laser-Guided Karma: Kirby is killed by the closing iris after he has eaten everyone else.
- Nervous Wreck: Everyone hiding from Kirby within Pop's house makes it clear that their fear of being eaten by Kirby is up the roof.
- They Killed Kenny Again: Flaky, Craig, Shifty, Chef Pee Pee, Toothy, Disco Bear, SpongeBob, Dedede, and Kirby die in this episode.
- Throw the Dog a Bone: Cuddles, Tweak, Nutty, and Lifty survive this episode.
- Villain Protagonist: Kirby in this episode.
