Kristy

Crossing Dimensions
Kristy flew into space to fight her rival, Greg. An identical physical of her, Bubby Kristy appeared, from another dimension. Bubby fainted, and so Kristy grabbed her and flew off, accidentally through the portal into Bubby's world. There, Kristy was alarmed to see Doccy as a scientist. Then the Greg from Bubby's world appeared, and chased them through to the forest, past Farmville and up Mount Canine. They terrified him with spiders, and he returned back to Doccy's lab where the portal was. Kristy, Bubby and Doccy returned to the lab too, with Kristy returning home as the portal closed.

Adult years and return to Animal Dimension
28 years later, Kristy had left Zeus and retired. Whilst she sat alone in her apartment, Bubby suddenly entered, explaining that; ''her dimension was made by two time-travelling, multiverse-hopping humans, but this was forbidden. So they created a flower that, if eaten, could give out superpowers so one day they could be freed by that hero from punishment. The humans were banished into the fourth dimension, and Bubby indeed rescued them, but discovered she only existed to save these two 'rebels'.'' Kristy and Bubby travelled to Bubby's world, and met her family and friends. Suddenly, Greg arrived and told them he planned to take his time machine to the fifth dimension and blow it up, wiping out all multiverses. Bubby and Doccy went to stop him, while Kristy and the other cats were left fighting the villainous wildlife. When Bubby's friends Cora Tom, Lucy Schthubsworth and Lulu Nyosen stopped the creatures, Doccy returned, saying Bubby and Doccy had gone through the time machine. Moments later, the time machine appeared and Greg's Home Island blew up, ruining Kristy's chances at returning home. Unfortunately, Bubby had died in the fifth dimension and was not in the time machine. Upset, Kristy went with Bubby's mum McKrit Loofii to the city.

Stuck in another dimension
Kristy and McKrit parted ways. Kristy went to the apartment she lived in in her world. She entered her flat, and found a black and a grey cat. They appeared to know Bubby and mistook Kristy as Bubby, who informed the brothers that Bubby died. Lex and Smokey introduce themselves and offer to let Kristy stay. When Kristy reveals Greg died, Lex realises the the curse Greg gave him was lifted; now he can have more than one loved one at once. They tell stories about their past.

Appearances

 * Super Bubby Part 2
 * Super Bubby 20: The Meaning of Life (cameo)
 * Super Bubby 21: The Finale