Blu seemed like such an angel in the first 3 episodes, only to reveal he can be very bratty in the 4th episode.
I guess his positive side is that he's loyal to Mac.
Coco was also kind of a jerk. Or maybe she just has memory problems.
I guess it shows how kids don't like to imagine convinient low maitenance imaginary friends.
Also my heart goes out to Frankie. She can't catch a break.