- Script
- Karl Kesel
- Pencils
- Terry Dodson
- Inks
- Rachel Dodson
- Colors
- Alex Sinclair
- Letters
- Ken Lopez
- Genre
- superhero
- Characters
- Harley Quinn; GUESTS: Poison Ivy; Joker; Martin (Death); Lewis LeBeau; Buster; Jack Happi; Di Happy; VILLAINS: Bruce Wayne [Batman]; Commissioner Gordon; CAMEOS: Fake Versions of Batman; Robin; Joker; Catwoman
- Synopsis
- Harley breaks into Arkham to break the Joker out. Joker sends Harley and the gang to make a new roller coaster based on himself a real killer. Mr. J decides to break-up with Harley permanently.
- Reprints
First 6 pages are drawn in the Batman Animated style.
- Script
- Matt Idelson
- Pencils
- Terry Dodson
- Inks
- Rachel Dodson
- Colors
- ?
- Letters
- Typeset
- Genre
- superhero
- Characters
- Harley Quinn; Joker; Batman; Two-Face
Introduction to the comic; Unused cover for Harley Quinn #1; Cover art for Harley Quinn #2.