The episode was written and storyboarded by Tom Herpich and Skyler Page, from a story by Patrick McHale, Kent Osborne, and Pendleton Ward.
"The Hard Easy", which was advertised as the 100th episode of the series, was viewed by 2.643 million viewers, and received largely positive reviews from television critics.
During a rainy day, Finn and Jake are approached by a mudscamp named Woobeewoo (voiced by Kent Osborne), who pleads with the heroes to help save his village.
Agreeing to help, Finn and Jake appear before the village elder (voiced by Jonathan Katz) who reveals that their community is under attack by a giant Mega Frog that apparently tries to eat them.
"The Hard Easy" was written and storyboarded by Tom Herpich and Skyler Page, from a story developed by series creator Pendleton Ward, Patrick McHale, and Kent Osborne.
"[6] He felt that while the episode was not "too crazy for the milestone story" the "simple yet striking character designs, stylized dialogue, intense action, clever comedy, and generally chill atmosphere combine to create a delightful burst of animated whimsy, light and frothy but still substantial.
"[6] Sava argued that the episode took elements from the fairy tales Hansel and Gretel and The Frog Prince, but managed to tweak and change them "through this show's psychedelic toilet filter".