Eggman has discovered a strange material from space that people of Popstar refer to as Dark Matter. So, Eggman decides to go and look for more, but Cream discovers Eggman is up to somethine. But before she could warn Sonic, Eggman takes her and Cheese prisoner. While Eggman looks for Dark Matter, he gets a little rodent infestation.

While Ash decides to invite all of his old traveling companions over to celebrate making it to the Ultra Class in the World Coronation, Team Rocket discovers a dangerous machine that also has a thing for Ash for some reason. At the same time, a presence from long ago decides to return to assist Ash in this quest. Also, special surprise Poke'mon battle at the end of the story.

Kirby has a strange dream before his birthday about a mysterious titian attacking Popstar 1,000 years ago. At the same time, pieces of something called the Jamba Heart Scatter all over Popstar and spread corruption everywhere, including to the Super Mario Brothers' Team. Now Kirby needs to assemble a new team. Yet...there is something familiar to Kirby about this Jamba Heart...

After having a dream involving the Tropical Night, Shantae gets worried and asks Ty to bring her to where they hid the Tropical Night. Unfortunately for Shantae, she turned out to be right as a threat she recently defeated has returned.

Viridi has visions of Pit and Dark Pit's battle with the Chaos Kin over and over and takes it as a sign that a danger to come. Meanwhile, King K. Rool has managed to locate a creature the likes he's never seen before lying injured in a crater in the jungle. Can Pit and Donkey Kong stop K. Rool before this monster is unleased on Kongo Jungle?