UCF

UCF stand for ULTRA CF. They are the CFs of the future, and as a result are stronger than actual CFs.

They want to travel into the present to claim the world as their own before good cats also get the technology to be as strong as them. Basically, the way they plan to rule the world is to get into the present, when the cats don't have the the same technology as they do. Hen helped them by using a time machine created by Rufus.

Rufus eventually realises that his technology is being used for evil, and feels discouraged. When he sees the elemental powers of the UCFs, he loses all hope. Happily, Steve and Percy refuse to let him down, and fight to restore Rufus's hope. When Percy show a great plan to win against the UCFs, Rufus get his hope back and fights for good again.The UCFs were then teleported back to the future once again. Three of them are killed in the process (Bad Fire, Froze and Water Strike). All of the other UCFs are now stuck in the future (Their present).

UCF powers have a limit. when a cat with similar elemental powers is near, they can't use their power against cats that have already suffer a similar thing. Like when Ice (god of the Ice) got near Forze (UCF with ice powers) she wasn't able to attack Steve and Tilla any more. This was because Steve underwent cryobiology, while Tilla was frozen in an icoator in the past.