Powerpuff Girls: Super Smash Up! — IDW Publishing
Issue: #4
The Girls have tracked the mutated Dee Dee to Foster's Home For Imaginary Friends! Too bad it’s right in the middle of Ultimate Hide n Seek!
First appearances: Miss Spell, Duchess, Uncle Pockets, Berry, Ya-Mon
Creators: Neil Uyetake, Sarah Gaydos, Nneka Myers, Ivan Cohen, Derek Charm
Characters: Miss Spell, Bubbles, Blossom, Bloo, Big Billy, Mojo Jojo, Mr. Herriman, Mac, Major Glory, Princess Morbucks, Valhallen, Dexter, Dee-Dee, Duchess, Steve, Uncle Pockets, Buttercup, Coco, Mayor, HIM