Maybe in the fanfiction, there could be a parallel universe where Kid and Kat have different personalities. They are forced to coop to save both their worlds from destruction. Kat could be more heroic than usual and Kid could be more hesitant, creating an interesting dynamic.
I'm not sure specifically what that particular 1995 Casper and Kat fanfiction is about. It could be about their adventures in the afterlife, perhaps how they interact with other spirits or how they deal with the living world intruding on their ghostly existence.
To make your fanfiction stand out, research different writing styles and try to incorporate elements from those that you like. Use vivid descriptions to bring the world of Kid and Kat to life. For instance, when describing a fight scene between them and an enemy, use strong action verbs and detailed imagery. Also, don't be afraid to explore deeper themes like friendship, loyalty, and growing up within the context of the 'kid vs kat coop x kat' universe.
In a world where Kid and Kat co - exist, Kid noticed that Kat had been acting strangely lately. Kat seemed to be spending a lot of time in the old abandoned house on the edge of town. Kid, being the curious boy he is, decided to investigate. He snuck into the house one day only to find that Kat was building a giant cat - like contraption. Kid realized that Kat planned to use this to take over the town's supply of tuna. So, Kid quickly ran back home and started to build his own device to counter Kat's plan. After days of hard work, Kid was ready. He confronted Kat just as Kat was about to launch his contraption. A battle ensued, with Kid using his smarts and Kat using his feline agility.
One idea for a Power Rangers SPD Kat fanfiction could be to explore her backstory before joining SPD. Maybe she had a difficult life on her home planet and her journey to becoming a ranger was a way to find purpose and family.
A great fanfic idea could be a prequel about how Kat and Raven first met. It could show their initial impressions of each other, perhaps with some misunderstandings due to their different outlooks. For instance, Raven might see Kat as too naive at first, while Kat could be a bit intimidated by Raven's tough exterior.
A fanfic could explore the relationship between Kat and Raven in a more personal way. Maybe it's a story set during a time of peace in their world. Kat decides to show Raven around her favorite places in the city. As they explore, they share stories about their pasts, and Raven begins to open up more about her own experiences, deepening their friendship.
As of now, Magic Triumphs is considered the last in the series. However, authors sometimes change their minds or come up with new related works in the future.