The 35th episode and Part 1 of 'Necrosan-The Final Challenge'.
Tafeli and the others are enjoying each other's company, when suddenly the whole ship is sucked into a black hole. It's revealed that Necrosan has created an entire dimension for him to sic the deadly Hellspawn unto the team in a deadly game that will ensure his revenge. He is also joined by Starfleet Magic's Titan and his minions for connivance. However, Marceline is too busy visiting her dad and Necrosan sends the honorable Hellspawn, Oblivion, to retrieve her. Needless to say, Hunston Abadeer doesn't take this kindly. Nevertheless, she's brought along for the ride.
- Amazingly Embarrassing Parents: Hunston to a P.
- Badass Boast: From Oblivion. "The seas that tear apart coastlines....the earthquakes that ravage your cities...the fires that engulf the populace...these are reminders to teach mortals their place! They are my domain!...FOR I AM...OBLIVION!"
- Beam Clash: Oblivion and the Berserker Combination engage in one. Guess who wins?
- The Blade Always Lands Pointy End In: On the poster to grim effect.
- Blood Knight: Megatron claims a warrior can only live on the battlefield.
- Bring My Brown Pants: Tafeli inks himself when Necrosan tells him that he's gonna die.
- Call-Back: Tafeli knows what Necrosan did to him the last time they met.
- Curb-Stomp Battle: Oblivion to Hunston's security, warriors, and (even more so) himself.
- The Friend Nobody Likes: Titan and his Minions to Necrosan.
- Genre Savvy: Marceline knows that a bunch of warriors pitted against one being that managed to take out a whole army of trained guards is not going to end well on the former's part.
- Ignored Expert: Hunston brushes this off regardless.
- Impact Silhouette: What happens to the guards in the Nightosphere.
- Punched Across the Room: The possible reason.
- "Open!" Says Me: Oblivion to the gates on the throne room.
- People Puppets: The whole teams (sans Tafeli) are these on the poster, though they resemble kewpie dolls.
- Pet the Dog: Oblivion towards a random demon he accidentally crushed.
- Quirky Miniboss Squad: The Berserkers. A group of 4 demons that challenge Oblivion on Hunston's orders.
- Readings Are Off the Scale: Oblivion's power, according to the attendant at the Nightosphere, is much more than Hunston. He's right.
- Savvy Guy, Energetic Girl: Doc and Amy, apparently.
