Trivia: Henchman 24 mentions former Henchman Speedy, and also when Brock hit him with a car. Both are from the first episode, "Dia de Los Dangerous." Ironically, the late Speedy predates both 21 and 24 as a named Henchman, and a full character.
Henchman 24: Wait, here. What's your name?
Henchman 1: Henchman 1!
Henchman 24: See, you are nameless.
Henchman 1: I'm Scott Hall! My name is Scott Hall, okay.
Henchman 24: Mmm…nope. Won't help.
Henchman 21: Now he's just Pathos. See you're all dyin' in my lap, and I'm all, "Scott! Scott, don't you quit on us! Don't you dare!
Henchman 24: You just made you're unavoidable death, more pathetic.
Henchman 21: *bleep* it. Nothin's gonna happen to me!
(21 walks off and 24 follows)
Henchman 24: Well?
(1 walks toward them with his head held high when the alarm goes off)
Henchman 1: Oh come on!
(Brock comes to find the henchmen. 21 and 24 pose with the mannequins in the museum while Henchman 1 uses his utility belt grapple hook his way up to a catwalk. Brock follows Henchman 1)
Henchman 24: I've always wanted to try this, but the opportunity never comes up!
Henchman 21: Yeah, poor guy missed out on like the greatest cliché in deception. Yeah, but that getting killed by Brock is a glorious way for a henchman to go.
Henchman 1: This floor is laser-trip wired. We have to find an alternate route.
Henchman 24: Yeah, maybe over a shark tank or something.
Henchman 21: Yeah, you go off and meet your maker while 24 and I keep going this way.
Henchman 1: Okay, knock it off you guys. You're starting to get to me.
Henchman 21: You still don't get it. 24 and I have been on, like, a thousand missions. We've been shot at, dipped in acid…
Henchman 24: Brock Sampson hit me with a car! Drove right into my kidney. Here I am!
Henchman 21: We could walk across this floor and nothing would hit us. But then like this huge log would swing down and take your head off.
Henchman 21: Ah, my head feels like it's going to explode, I can't hear squat.
Henchman 1: You should perform the Valsalva Maneuver.
Henchman 21: All right, look here Mr. "I'm The Best Henchman Ever," we'll get to business in a second, I'm trying to pop my ear.
Henchman 1: (sighs) The Valsalva Maneuver is when you adjust the pressure in your middle ear, silly. Swallow, or yawn should do the trick.
Henchman 21: That has a name? Listen dude, don't get cozy with us. You're the guy who doesn't come back.
Henchman 24: Yeah, some guy who just shows up that nobody's ever seen before!
Henchman 21: Right, he's all professional. Yeah, dude, you're a goner.
Henchman 24: Let me tell you all about a little Henchman named Speedy...
Henchman 21: All right, please tell me you know what a Dark S-7 maneuver is?
Henchman 24: I think, ah, it's when...
Henchman 1: Dark prefix indicates that it's a stealth maneuver. The S-7 indicates...
Henchman 21: Dude, who are you? 24 and I work as a duo.
Jonas Jr.: Well, team, it looks like I've got myself a costumed arch-enemy. I'm not sure what the flying pine cone is about, but I'll give Mr. Evergreen a run for his money.
Monarch: What the *bleep* is that thing?
Dr. Mrs. the Monarch: I think it's a giant robot with an ice cream cone for one of its arms. I think.
Monarch: Ah, the lightning cannon sucks! Who loaded it with robot food?
Monarch: You have one minute to surrender your… big robot thing. You refuse, we will open fire.
Jonas Jr.: How about this? I'll give you 20 seconds to kiss your wife for the last time. Then I finish you off, Mr. Evergreen.
Monarch: Uhh, I'm the Monarch.
Jonas Jr.: Oh. So the flying pine cone's a…
Monarch: Cocoon. Okay, I'll be right back.
Monarch: I'm your arch enemy! I'm not going to use "bumbling boobs" and "meddling kids," it's not my style!
Dr. Mrs. the Monarch: I, I gotta ask this. Is there a reason you always use 21 and 24?
Monarch: I know it sounds crazy, but they both have that rare blend of expendable and invulnerable that makes for a perfect henchman.
Guild Operative #1: The Guild of Calamitous Intent is antagonist relations only.
Jonas Jr.: Well who handles the good guys?
Guild Operative #2: Whoa, I think the less-hurtful term is "protagonist."
Jonas Jr.: Oh, yes. Sorry. Who handles the protagonists?
Guild Operative #1: What, are you serious? OSI, duh!
Jonas Jr.: Can you patch me through?
Guild Operative #1: Oh, sure, let me just get my red phone. The hot line.
Guild Operative #2: Oh I'll shine the OSI symbol.
Guild Operative #1: No no no. If we really believe and click our heals, they'll magically…
Jonas Jr.: Okay, okay, I get it.
Guild Operative #2: Newbie.
(about Jonas Jr.)
Guild Operative #2: When you were a kid did you ever make G.I. Joe hump Rainbow Brite?
Guild Operative #1: Yeah.
Guild Operative #2: He's what their kid would have looked like.
(examining a death ray)
Mr. Doe: If it were a woman, I'd marry it.
Mr. Cardholder: And I'd jeopardize our friendship by nailing your hot wife.
Henchman 1: Do one of you have an extra electro-patch?
Henchman 24: Eh, we don't wear our utility belts.
Henchman 21: Yeah, they're dorky. And they're like fanny packs for henchmen. Plus they make me look fat.
Henchman 24: Blame it on the utility belt.
Henchman 1: And you guys think I'm gonna die. I carry my full compliment of utilities.
Henchman 24: He's says as he electrocutes himself.
Henchman 1: I'm not gonna die! Stop it!
Henchman 24: He grabs the bomb on accident, right here! Kaboooom!
Henchman 1: I'm not gonna die!
Henchman 21: Yeah, yeah, yeah, and then, a snake jumps out and bites you right on your
Henchman 1: Stop it! Okay, done. Easy peasy. So now you know what the Dark S 7 maneuver is.
Henchman 24: We do?
Brock: So I guess you want to shoot it yourself.
Jonas Jr.: Of course.
Brock: Well do you have any death ray experience? I mean, those things can kick?
Jonas Jr.: Is the great Brock Samson jealous of my super-sweet death ray?
Jonas Jr.: Tough tiddlywinks! Fire her up!
Despite airing as the tenth episode of the season, this episode picks up immediately where the post-credit sequence of episode eight, "Tears of a Sea Cow," left off.
The show uses the full opening credits for the first time since "The Buddy System."
Hank, Dean, and Dr. Rusty Venture don't appear.
The Ventronic robot is reference to Voltron, what with being formed by separate vehicles, and the classic "I'll form the (body part)" command. Voltron: Defender of the Universe was an 80's cartoon, which was a redub of the Japanese cartoon Hundred Beast King GoLion and featured a team of pilots who would combine their vehicles to form a giant humanoid robot in order to save the world.