After Darkwing and Launchpad got trapped by the Liquidator's hard water spell, look carefully at the hard water level at their feet. After the commercial break, the hard water's level is now on Darkwing and Launchpad's stomach level.
In the scene in the factory where Mr. Flood is poisoning the water, he's gloves disappear and reappear several times.
Launchpad: It's Bud Fludd!
Singers: Bud, Bud, Bud, Buddy Fludd!
Darkwing: This is a job for Darkwing Duck! (Later, driving through the hot sun) This is a job for Lawrence of Arabia!
Darkwing: I am the terror that flaps in your pipes! I am the hairball that clogs your drain! I am the original Mr. Fix-It!
Darkwing: I am the soap scum that lines your bathtub!
Darkwing: I am the parking meter that expires while you shop!
Women dancing in lobster costumes: Darkwing Duuuuuuuuuck!
Launchpad: Aah! Dancing lobster women!
The Liquidator's origin is seen in this episode, that has Bud Flood falling into a vat of poisoned water that turns him into Liquidator and is similar to when Jack Napier fell into a vat of acid that turned him into Joker in the 1989 Batman movie.
Much of Liquidator's dialogue is based on advertising slogans.
The Liquidator was formally known as Bud Flood.
This is the Liquidator's first appearance (despite the fact that he appeared in the previously aired "Just Us, Justice Ducks" and "Life, the Negaverse and Everything").
Bud Flood: Plop plop, fizz fizz!
This is a play on an old advertising slogan forAlka Seltzer, a stomach remedy.
Reporter: Mr. Muddlefoot, sir. I'm from Better Than Your Home and Garden Magazine.
This is an obvious reference to the popular magazine Better Homes & Gardens
When Bud Flood falls into the vat and is turned into Liquidator, it is similar to how Jack Napier falls into the vat which turned him into the Joker in the movie Batman.
Liquidator is a parody of Spider-man's enemy Hydro Man.
The Treasure of Sierra Madre
Drake: I don't need no stinkin' Pinckney flange!
This is a reference to the movie The Treasure of Sierra Madre when an inspector says "Badges? We don't got no stinkin' badges! We don't need no stinkin' badges!"
Dry Hard: The episode title is a parody on the 1988 Bruce Willis movie Die Hard.
Launchpad: It's Soft Copy with Tom Lockjaw
Tom Lockjaw is a parody of the news reporter Tom Brokaw and Soft Copy is a parody of Hard Copy.