Jambalaya Jake is back in town and looking for revenge on Darkwing Duck. Armed with a voodoo potion brewed by his Granny Whammy, he plans to hex Darkwing and turn him from superhero into supercriminal. Unfortunately, Darkwing has been teaching Launchpad to act as his decoy, and Jake hexes him instead.
This episode includes examples of the following tropes:
- Alleged Lookalikes: This starts the plot. Jambalaya Jake, in a hurry to hit Darkwing with the hex, confuses Launchpad with Darkwing because he's wearing a duplicate of Darkwing's outfit and using his trademark smoke entry to act as his decoy. Launchpad is tall and muscular while Darkwing is closer to average height and body-build, so presumably he would have been able to tell the difference given a little more time.
- Beat Them at Their Own Game: While training him as "Darkwing Decoy", Darkwing tries to teach Launchpad one of his moves. When Launchpad gets brainwashed, he proves to be just as good at the maneuver as his teacher.
- Brainwashed: The potion Jake uses on Launchpad makes him extremely obedient to orders, whatever they are. Fortunately, Jake isn't interested in having Launchpad hurt anybody so much as steal things for him.
- The Bus Came Back: Jambalaya Jake and Gumbo return after their last appearance in "Can't Bayou Love".
- Crisis Makes Perfect: Played with. Early in the episode, Darkwing is trying to teach Launchpad one of his moves, but can't do it. Later, after Launchpad has been hexed, he takes Darkwing out with the very same move. After the brainwashing is undone, Launchpad attempts the move during the final fight...and bungles it once again.
- Evil Old Folks: Jambalaya Jake's Granny Whammy is every bit the criminal he is.
- Evil Sounds Deep: Under the control of the hex, Launchpad speaks in a deeper, harsher voice.
- Face–Heel Turn: Invoked; the potion brainwashes Launchpad into following Jake's orders, and Jake wants him to steal enough valuables that he can make a big profit (and pay back his granny).
- Good News, Bad News: After they've left their costumes on the defeated Jake and Gumbo to make sure they get the blame for the crime spree, Darkwing tells Launchpad that fortunately, their reputations are intact, but unfortunately, they won't have costumes until they sew new ones.
- Hidden Depths: Darkwing actually knows how to sew well enough to make his own costumes.
- Hypercompetent Sidekick: Gumbo can not only act as Jake's manservant; he knows better than he does to take care to pay Granny Whammy her money.
- Mistaken Identity: Despite getting Launchpad with the hex and not Darkwing himself, Jake is still able to make his scheme work by using the mind-controlled Launchpad to commit crimes. Since he's wearing the Darkwing Decoy costume, the public thinks the real Darkwing Duck committed the crimes and he ends up wrongfully imprisoned.
- Never Mess with Granny: Jambalaya Jake, himself no weakling, is visibly nervous about making Granny Whammy mad.
- Nice Job Fixing It, Villain: Things could have gone much more poorly if Jambalaya Jake hadn't tried to weasel out of paying Granny Whammy what he owed her, causing her to break the spell on Launchpad as punishment.
- Punishment Box: One shows up when Darkwing is wrongfully imprisoned. It's a literal small box in which he gets stuffed.
- The Punishment Is the Crime: Granny Whammy's way of punishing her grandson for not paying her is to un-hex Launchpad and let him and Darkwing beat him up in retribution for what he's been doing to them all episode.
- Voodoo Zombie: While the term "zombie" isn't used (presumably because the term now means something different), Granny Whammy's "hex" works like this, turning the person hit with it into a mindless slave. However, the middle step of having the victim buried alive and dug up by the hexer is cut out.
