Buford: Well, why don’t you ask it, Kierkegaard?

[everyone gives him a look]

Buford: What? Existentialist Trading Cards. They came with the gum.

—Phineas and Ferb Across the 2nd Dimension

2nd Dimension Doofenshmirtz: So tell me, other dimension me, what do you see here?

1st Dimension Doofenshmirtz: An ordinary platypus.

2nd Dimension Doofenshmirtz: And now what do you see?

1st Dimension Doofenshmirtz: Perry the Platypus!

2nd Dimension Doofenshmirtz: You know, I’m starting to see why you haven’t become ruler in your dimension.

—Phineas and Ferb Across the 2nd Dimension

Phineas: I used to think you couldn’t spell platypus… without us.

Ferb: Well, you can, but it would just be platyp.

—Phineas and Ferb Across the 2nd Dimension

Doofenshmirtzes: Curse you, Perry the Platypus!

Original Doofenshmirtz: Jinx! You owe me a soda!

—Phineas and Ferb Across the 2nd Dimension

Doofenshmirtzes:  ♫ I found a brand new best friend, and it’s me! ♫

—Phineas and Ferb Across the 2nd Dimension

Phineas: So not only have you been leading a double life this whole time, but you sat there and let us help an evil scientist open an evil portal into an evil dimension! And you did nothing to stop us?

Ferb: Well, he did pee on the couch.

Dr. Doofenshmirtz: Wait a sec, I just realized something — that was a conscious choice, you peed on my couch!

(Perry shrugs)

—Phineas and Ferb Across the 2nd Dimension

Dr. Doofenshmirtz: Aww, well he’s a cute little fella, hi there. (he tickles Perry’s chin) Cootchie— (Perry bites his finger) OW OW OW!

Phineas: Perry, no! (He and Ferb pull him off) We do not bite the elderly!

Dr. Doofenshmirtz: Again, OW. No, it’s okay, platypuses don’t typically like me.

—Phineas and Ferb Across the 2nd Dimension

Doofenshmirtz: I never built an Amnesia-inator! I think I’d remember building something like that. 

—Phineas and Ferb Across the 2nd Dimension

Isabella: So, none of us will remember any of today?

Major Monogram: That’s right.

Isabella: Good! [kisses Phineas]

Phineas: Isabella!

Isabella: Hit it, Carl!

Phineas: Wait, wait, wait!

—Phineas and Ferb Across the 2nd Dimension

I will probably take many photos for my daughter! :)

Perry the PlatyBUS.

The Phineas and Ferb booth was awesome.