Isagirl

When Isabella found a magic amulet, she gains superhuman powers such as super strength, the power to fly, invincibilility, superspeed, ect. Now by day, she is an average girl helping her friend Phineas make his days of summer really count. But at night, she gains a new persona and becomes the world-renowed perky superheroine Isagirl. Whereas Isabella cares for Phineas, Isagirl has a love for the Beak (which makes sense with Isabella knowing Phineas is the Beak, sort of). But when Candace finds a dark crystal and becomes the villainess Chaos, Isagirl is in for the fight of her life. Luckily, the Beak and Agent P got her back. Meanwhile, Ferb fills in for Agent P (whose on a mission to help Roger open all his pickle jars) and must stop Doofenshmirtz (Vanessa singing) from selling his music demo to Disney Records to brainwash the entire Tri-State Area. (He volunteered because he wanted to see Vanessa again.)

Songs
The Beak (song)

The Fall of an Empire

Isagirl (song)

One and the Same

Characters
Isabella/Isagirl

Phineas/The Beak

Ferb/Agent F

Candace/Chaos

Perry/Agent P

Dr. Doofenshmirtz

Major Monogram

Carl

Roger

Norm

Vanessa

Stacy

Baljeet

Grenchen

Adyson

Ginger

Melissa

Irving

The "Too Young" Line
1.Police Officer: Aren't you a little young to be a superheroine?

Isagirl: Yes, yes I am.

2.Mellisa: Doesn't Isagirl look familiar?

Adyson (sarcastically): Yes, yes she does.

3.The Beak: Boy, we make quite a team, don't we, Isabella.

Isabella (as Isagirl): Yes, yes we do.

Ferb's Line
1.Dr. Doofenshmirtz: Well, well, well, Perry the Platypus. How unexpected. (turns around to see Ferb) And by unexpected of course I mean--unexpected. What are you doing here, kid? And where's Perry?

Ferb: Perry's busy with your brother the mayor so I'm filling in for him.

2.Phineas: You know Ferb, if I didn't know any better, I'd say Isabella is Isagirl.

Ferb (over radio): Ya think?

3. Ferb: Man it's been one superistic days, eh guys?

Whatcha Doin'?
Isabella (yawning): Hey, Phineas, whatcha doin'?

Phineas: Well being that Perry is busy with Roger and Ferb is filling in at the Agency for him--You okay?

Isabella: I'm fine, just didn't get much sleep last night.

Phineas: Okay, anyway, I decided to reconstruct the Beak so while inside the suit I can use a remote control to control the weapons, the flying, ect. Here, have some Red Bull to keep you awake.

Trivia
Curiously, Irving seems to like Isagirl more than the Beak. It could be because he knows that Isabella is Isagirl and the closest thing to Phineas and Ferb while he is unaware that Phineas and Fer are the Beak.

Isabella and Phineas' relationship seems to be at a high status with the two (as themselve or as auperheroes) seem to keep flirting with each other.

Isagirl has the power to control the powers of rainbows, unicorns and sweetness similar to the Rainbow and Meap.

Phineas, Ferb, and Isabella seem to acknowledge the fact that Perry is a supersecret agent due to the events in Phineas and Ferb The Movie: Across the Second Dimension.

Perry opening all of Roger's pickle jars is similiar to the Powerpuff Girls opening the Mayor's pickle jar all the time.

Disney Records is mentioned in the episode.