Quotes / Mirror Match

You know, I remember reading somewhere that there are only two truly meaningful things you can do with your doppelganger when you're locked in a room. You can fight them... Or f#@k them.
Brian O'Donovan, to Dan O'Brien, Agents of Cracked note 

Kefka Palazzo: Who's that handsome devil?
Jecht: I get to fight with the best fighter in the world!
Cloud: Not you again.
— Mirror Match dialogue from Dissidia: Final Fantasy

Leela: We're exactly the same, I know all her moves. Therefore, I have the upper hand. Hiiyyyya-ow!
(Leela and her Alternate Universe counterpart do the exact same kick and knock each other unconscious)
Professor Farnsworth: Now, now; perfectly symmetrical violence never solved anything.

Aw man, Shadow Homestar? "Hey, I've got a wonderful idea! Let's dip the main character in a vat of ink and make you fight him before you get to the end boss!"
Homestar, Homestar Runner, "Hremail 2000"

Yellow Lantern: Sanctimony is easy when you know what-
Green Lantern: Save it. Time to kick my ass.
(one fight later)
Green Lantern: Well, that was surreal.
Wonder Woman: And a bit disturbing.
Green Arrow: Yeah, all of that yellow is really tough on the eyes.

Insurgency Batman: You're good.
Main Universe Batman: You expected otherwise?
Insurgency Batman: Call it a draw?
Main Universe Batman: Not our style.

Regime Superman: I saved this world!
Main Universe Superman: Now I'll save it from you.

Regime Solomon Grundy: Like looking in mirror!
Main Universe Solomon Grundy: Grundy hates mirrors!
Main Universe Solomon Grundy Grundy think you look handsome!
Regime Solomon Grundy So does Grundy!

Main Universe Joker: (Draws crowbar) Got a joke for you.
Regime Joker: (Draws crowbar) I've probably heard it.
— Character clash quotes from Injustice: Gods Among Us

Just what I need, another clone.
Spider-Man, facing himself in Marvel Super Heroes

Cassie Cage 1: Funny.
Cassie Cage 2: You know what's funny? Your face.
Cassie Cage 1: Dude, you've just insulted yourself...

Scorpion 1: Hold, Scorpion.
Scorpion 2: The sight of you offends me.
Scorpion 1: Your death will be swift.

Erron Black 1: Mind games don't work on me.
Erron Black 2: There's an obvious insult there.
Erron Black 1: You'd best shut up and draw…

Johnny Cage 1: This is embarrassing.
Johnny Cage 2: Don't beat yourself up over it.
Johnny Cage 1: Wow. I am annoying.
— Fight intro dialogue from Mortal Kombat X

Twilight: They're changelings, remember?
Fake Twilights: They're changelings, remember? (evil smile)

McGee: All right. Ooh, okay - Gibbs versus...
(Gibbs walks up behind Abby)
McGee: Gibbs.
Abby: Oh, oh that's good! Okay, so um, evil twin or a clone?
— An interrupted discussion of Ultimate Showdowns involving Gibbs, NCIS 6x10 - "Road Kill"

Computer: Phineas! versus, Phineas!
Phineas: Well, at least I'm evenly matched.

Big Band (Match Start): In some ways, it feels like I never left.
Squigly (Match Start): What a shameless imitation.
Cerebella (Victory): This ring's not big enough for the two of me!
Peacock (Victory): I'm the real deal! Accept no substitutes.
Squigly (Victory): Your flattery needs work.
Eliza (Loss): How fitting...
— Character specific dialogue for Skullgirls

Ugh; I hate fighting me.
Pearl, Steven Universe, "Ocean Gem"

If I can defeat myself, I will become complete!
Evil Ryu fighting his good counterpart, Street Fighter IV

Snake: Colonel, it's me! I'm fighting myself!
Colonel: Snake, what's going on out there?! Could it be...? Has the "Les Enfants Terribles" project really come this far?!
Snake: It's more than that! He's got my moves, my gear... It's like looking in a mirror!
Colonel: Do you think they collected data on you, and created another Snake?
Snake: He's got the same build, too. Creepy. But his Sneaking Suit is a different color. And his tactics are slightly different.
Colonel: Interesting. So even if you're evenly matched in power, your fighting styles will make a big difference. You've faced tougher odds in the past, Snake. Don't let this impostor beat you!

Pit: Wait a sec! Is that... me?!
Palutena: It certainly appears to be the case.
Pit: You're awfully calm about this, Lady Palutena!
Palutena: Well, we've been through a similar situation in the past, don't you recall?
Pit: Yeah, but it's still freaky! It's like looking through a twisted mirror! ...That reminds me: you know how Dark Pit came from a mirror? Then why doesn't he move left when I move right, and vice versa?
Palutena: Beats me.
Pit: But you're supposed to know everything! Don't you have an all-seeing eye and all-knowing brain and all that?
Palutena: My all-seeing eye sees you getting hit.
Pit: Aww man, really?
Palutena: I'm sure the true Pit would triumph over any doppelganger. So I guess now we'll see if you're the real deal.

I dunno, I'm really good at fighting me, apparently. I think honestly I should be able to advance no matter what happens here, but...

We all have our demons, Rick. It's time to face yours...
Terror Mask, Splatterhouse

Scarecrow 1: Ah, we fight ourselves!
Scarecrow 2: The ultimate metaphor.
Scarecrow 1: Which wins... Id or Ego?

Blue Beetle 1: That suit's a knockoff.
Blue Beetle 2: Your head's a knockoff.
Blue Beetle 1: Huh... thought I was funnier.
—Fight intro dialogue from Injustice 2