Trivia: Joey is shown to be terrible at his job in this episode (as was Rachel), but speaking of incompetence, how about Gunther? Gunther tells Joey that a customer has been waiting for his coffee for ten minutes and has complained about Joey three times, yet Gunther only now approaches correcting the problem.
Trivia: "Unagi" is indeed the name of a fresh-water eel, but in Karate, it is used as a metaphor for constant awareness. The metaphor is taken from the eel's uncanny ability to avoid capture.
Continuity: In this episode Chandler says that Monica was working on Valentine's Day, but in "The One with Rachel's Sister", Ross says that Jill asked him out for Valentine's Day. In that episode Monica is sick, not at work.
Factual Error: Ross explains to Chandler that his Saturn V Rocket model is from the Apollo 8 mission and that Apollo 8 did not land on the moon but instead orbited the moon twice and returned safely to earth. In fact, Apollo 8 orbited the moon a total of ten times, not two.
Goof: When Joey shouts at Carl about pizza, Chandler, although backwards, is clearly laughing. However when the camera angle changes, his face is serious.
Goof: When Monica plays "The Way You Look Tonight" on the mix tape, after the first verse the song should go straight into the second verse, but instead, the song goes into an instrumental break with Janice's voice dubbed over.
Goof: When Chandler is in the bedroom trying to make Monica a present, He stretches out a hanger. When the camera angle changes, the hanger is not as stretched as it was before.
Goof: When Gunther tells Joey that a customer has been waiting for his coffee for ten minutes, he hands a mug to Joey. You can clearly see that the mug is empty.
Goof: When Monica got upset over the tape, why would Chandler keep playing it instead of turning it off?
Ross: Hey, remember when I had a monkey?
Ross: Yeah... What was I thinkin'?
Joey: Hey, so... what's with the twenty-percent tip? Did I do somethin' wrong?
Chandler: Twenty-percent is a pretty generous tip, Joe.
Joey: Y'know what's more generous than that? Fifty percent! Y'know what's even more generous than that...?
Chandler: I see where you're goin'!
Joey: I gotta get these new headshots made and they're really expensive, y'know? I'm down to, like three! ...actually two, 'cause one of them... I kinda blackened in some teeth. (smacks himself in the head) Why'd I do that?!
Ross: (to Joey about his money problems) Isn't there something you can do to earn a little extra money? I mean, can't you pick up, I dunno, an extra shift here?
Phoebe: Or... y'know, I used to beg for money... Of course, it helps if you've got, y'know, a little o' this goin' on... (shoulder shimmies) Wow! Still have it!
Joey: (about a way to earn extra money) Ooh! Wait a minute, I used to get medical experiments done on me all the time!
Chandler: Ah, finally an explanation.
Gunther: What did I tell you about talking to your friends while you're working?
Joey: Uh, do it?
Gunther: That guy's been waiting for his coffee for ten minutes. He's complained about you three times.
(Gunther hands Joey the customer's cup of coffee and Joey starts drinking it himself)
Joey: (to his friends) So, where was I?
Phoebe: Now we can kick anybody's ass.
Rachel: (smugly) Yeah.
Ross: (incredulous) After one class? I don't think so.
Rachel: What? You wanna see me self-defend myself? (pointing) Go over there and pretend you're a sexual predator! (shouts) Go on, I dare ya!
Ross: It's one thing to be prepared for an attack against, like, each other... It's a whole 'nother story being prepared for an attack... I dunno, like... (suddenly shouting in Rachel's face) Surprise!!
(Rachel slowly wipes some of Ross's spittle from her cheek)
Ross: Alright, you knew that was coming, but it doesn't mean you have... (touches fingers to his temple) "unagi".
Rachel: Ooh, y'know what... if we made reservations we could have unagi in about a half hour.
Chandler: (coming into Central Perk) Hey, hey... is Monica here?
Phoebe & Rachel: No...
Chandler: Okay, look... I need your help. I don't know what to get her for Valentine's Day.
Rachel: Well, Valentine's Day was two weeks ago, so I wouldn't get her a calendar!
Joey: (to the clinical studies receptionist) Well how about this one? Testing the effects of Joey Tribbiani on attractive nurse receptionists.
Receptionist: (pleasantly) We already got the results back on that, and they're not good.
Ross: (jumping out from hiding in the hallway) Danger! Danger!
(Phoebe and Rachel scream)
Rachel: What the hell was that?!
Ross: A lesson in the importance of (touches his fingers to his temple) Unagi...
Phoebe: You're a freak!
Ross: Perhaps... Now I'm curious. at what point during those girlish screams would you have begun to... (mocking them) "kick my ass?!"
Rachel: Alright, so we weren't... (mocking him) "pruh-pared!!"
Chandler: (entering Ross's apartment) Hey!
Ross: (with his back to him) Chandler... I sensed it was you.
Ross: (turning and touching his fingers to his temple) Unagi... I'm always aware.
Chandler: Hey, are you aware that unagi is an eel?
Rachel & Phoebe: (jumping out from behind the curtains) Danger!!
(Ross squeals like a girl)
Rachel: (touching her fingers to her temple) Ahhh... salmon skin roll...
Monica: (to make up for giving Chandler a lousy Valentine's Day present) I am going to cook you... (points to the kitchen) anything you want in here, and I am going to do... (points to the bedroom) anything you want in there!
Carl: (entering Monica's)) Hey Mon! Hey Chan! Just getting a soda... (opens the fridge)
Monica: Who the hell are you?!
Carl: I'm Joey! How are you doin'?
Joey: (bursts into the apartment) No! No! No! No! No! 'How you doin', how you doin'? Dammit, Carl! Go wait in the hall. (Carl exits) Look, I got to apologize on behalf of Carl.
Chandler: Who the hell is Carl?!
Joey: Oh, did I not mention?
Joey: Carl is a guy I hired to be my identical twin for a medical research project.
Chandler: Y'know, sometimes the good ideas are just right in front of you, aren't they?
Joey: I know it sounds crazy, but I think it might work, y'know? The only problem is, Carl's acting… (waggles his hand suggesting "not so great")
Monica: The only problem?!
Doctor: (reading from a clipboard) Joey and Tony Tribbiani...
Joey: That's us!
Doctor: (confused) But, uh, this is a study for identical twins.
Joey: That's right. (smiles and winks) Two thousand dollars.
Doctor: But... you're not identical twins...
Joey: (momentarily lost for words, then yells) Dammit Carl!!
Chandler: (to make up for giving Monica a mix tape from Janice) I will cook anything you want in here... (points to the kitchen) ...and I will do anything you want in there. (points to the bedroom)
Monica: (points to the kitchen) Yeah, you will, and... (points to the bedroom) are you kidding me?!
International Episode Titles:
Czech Republic: Síla unagi (Power Unagi)
There is a new opening sequence during the theme song. Along with the shots of the fountain, clips are added in from the first half of Season 6. This happens at the beginning of, and approximately half-way through each season throughout the entire 10 seasons, with one exception: In the previous episode, "The One That Could Have Been", the fountain scenes as well as the clips of individual characters in various circumstances were especially created for that one episode.
Alternate Title: The One With The Mix Tape
This episode runs 21:46 on DVD (a typical sitcom runs about 22:00).
Phoebe: Pat Sajak?
Phoebe: Alex Trebek?
Rachel: Oh, of course!
Phoebe: Chuck Woolery?
Rachel: Definitely! Phoebe, you will not find a single game show host whose ass I cannot kick.
Pat Sajak is the host of Wheel of Fortune.
Alex Trebek is the host of Jeopardy!.
Chuck Woolery was the host of Wheel of Fortune and Love Connection, and after this episode first aired, would go on to host Lingo.
User Score: 9964
User Score: 6253
User Score: 1906
User Score: 1729
User Score: 955
User Score: 658
User Score: 514
User Score: 504
User Score: 422
User Score: 405
User Score: 321
User Score: 270
User Score: 169
User Score: 152
User Score: 147
User Score: 144
User Score: 133
User Score: 118
User Score: 116
User Score: 106