Don't Go

The family cat is enjoying a relaxing morning at home, snoozing on the sofa, tucking into his dinner - when his peace is shattered by an unusual visitor.  Will cat ever catch him?

You could do lots with language, antonyms to describe the two characters, adverbs to describe the action.
Create a world for the pink character.
Devise a set of instructions on how to avoid being caught by a cat. 
Write a recount from the cats point of view.
Write the narrative from both points of view.