The Beak is a suit created by Phineas and Ferb to safely conquer their newly built extreme skate-track.
“We have to blur the line between skateboard and skateboarder. We can combine dirt biking, ATV racing, in-line skating, street luge, motorized scooters, and Bulgarian folk dancing. Of course, all this extreme fun requires extreme safety: shoulder pads, goggles, gloves, Bulgarian folk athletic supporters, and rocket boosters, razor wire, grappling hooks and laser blaster. Then we lock it all in with an indestructible titanium exoskeleton which increases strength, jumping ability, and other physical attributes one hundred times, including the senses and folk dancing ability.”
After finishing the "Phineas and Ferb's edge-of-insanity, kiss-your-butt-goodbye, gravity's-a-stone-cold-sucker nightmare rail skate track obstacle course of doom", Phineas realizes that he and Ferb could get hurt if they use the track, so they reluctantly take the stairs back to the ground to revise their plans ("The Beak").
“'Superhero comes to Danville,' by Isabella Garcia-Shapiro. 'I call him The Beak.' Hey, I like that!”
The suit does exactly what it's meant to do, as they go over various extreme turns, jumps, spins and obstacles completely unfazed and unfettered. Suddenly, Phineas hears Buford calling for help. Ferb engages the rocket launchers, propelling them in the direction of the screaming. Phineas and Ferb approach Buford, who is trying to coax Baljeet from the top of a tree using a calculator and a page of math problems. Baljeet falls out of the tree, but is caught by Phineas, still in the suit. Isabella spots the rescue in progress and takes some pictures. Just then, the Fireside Girls Gazette is delivered, headlining Baljeet's earlier rescue by a "superhero" that Isabella has named "The Beak".
The Beak arrives downtown to tell Isabella about the Beak's true identity. Just as he tries to attract Isabella's attention, he's attacked by Khaka Peü Peü. A fight ensues in which the Beak is victorious. Phineas beats a swift retreat, stating to Ferb that they can't reveal the Beak's true identity at this crucial stage of the game without putting Isabella in danger.
After foiling some of Khaka Peü Peü's plans, The Beak is then confronted by "The Dangeraffe" (Candace), Khaka Peü Peü's new ally. Thinking Khaka Peü Peü captured Candace, they surrender until Candace leaves Khaka Peü Peü (after he called her a henchman). Another fight follows, during which Isabella is knocked off a ledge and the citizens are put in danger when Khaka Peü Peü fires a laser to knock down a billboard, giving The Beak two problems at once. Phineas exits the suit to save Isabella, while Ferb saves the citizens and the fight continues when Phineas returns. During the battle, Phineas realizes Khaka Peü Peü's motives and reveals their identity to end the conflict. Despite still wanting to battle, Khaka Peü Peü is forced to leave due to his wife. Agent P then takes control of the suit after Doofenshmirtz takes control of Khaka Peü Peü's hover craft ("The Beak").
It is later used by Ferb while he and the others worked on Phineas' party. Ferb used it to make the Egg-Rendered Slushie Dawg for the scavenger hunt in order to distract Phineas before his party ("Phineas' Birthday Clip-O-Rama!").
The Beak (deployed using an upgraded version of the original, Beak Suit Mark 2) teamed up with the Avengers and Spider-Man when the superheroes once lost their powers. The suit was used by the boys to transport Iron Man, Spider-Man, Hulk and Thor to the Googolplex Mall, and then to help the Avengers and Spider-Man battle against Red Skull, Whiplash, Venom and MODOK. However, this version was not waterproof, and so lost in the first fight, and then got its arm ripped off in the final battle and a part of its abdomen destroyed by Venom ("Phineas and Ferb: Mission Marvel").
The Beak is large metallic exoskeleton that resembles a bird.
Shoots eggs out of its wrist
Bulgarian folk dancing
Other enhanced attributes
In "The Beak", CGI was used for certain shots of the suit. However, in Phineas and Ferb The Movie: Across the 2nd Dimension, CGI is absent and the suit is drawn somewhat slimmer.
The Beak combines elements of various superheroes: Iron Man's suit, Superman's relationship with Lois Lane, Batman's Batcave, and Spider-Man's theme song.
The first time the boys suit up in the Beak armor is a reference to a similar scene in the 2008 Iron Man film, complete with a similar guitar riff in the background music.
When Phineas used the suit, it altered his voice slightly. When Baljeet used the suit, his voice had no change at all. However, since the helmet was made for Phineas, it's possible that they had to modify it a little to fit Baljeet (as evidenced by Baljeet's entire face showing as opposed to the lower half, like on Phineas), thus removing any voice-altering properties.
The Beak is one of the only Big Ideas that Phineas and Ferb have kept, while they usually disapear at the end of the episode. Although the Beak flew off in the distance, along with the Khaka-Crawler. For "Phineas' Birthday Clip-O-Rama!", they either got it back or made a new one. A reproduction of the suit was used in Phineas and Ferb The Movie: Across the 2nd Dimension, but the original does not appear for unknown reasons. But it ends up getting destroyed twice in "Phineas and Ferb: Mission Marvel".