Think of it this way, the fillers, are just little kid shows reminding you the threadfull horrors of ghosts and how there fake, how to never run off and mis-follow directions, and how money isn't everything, o, and about 3 filler missions are about "teamwork". Now the next episode is probably going to be about how to "never loose important information". Some people like it, I think it's completely gay. Also all episodes are drawn by different artists. So a lot of the time the characters look dimwitted and misdrawn.