Fox: Gatling Gun
He'll fire up a rapid storm with it.
Zelda: Light Arrows
She'll shoot a barrage of Light Arrows all over the place.
Captain Falcon: Blue Falcon
He'll ride in it and tear around the arena, damaging foes!
Peach: Super Suit
http://img508.imageshack.us/img508/4781/
supersuitpeachxo7.png
She'll touches the jewel on her chest, which will cause her to magically don this suit and have it on for the rest of the match 1 whole minute, making her assume a more aggressive and acrobatic fighting style, rearranging her whole moveset.
Some Notable Super Suit Attacks
(Standard Combo) A rapid barrage of kicks.
(Forward Smash Attack) Swift Uppercut
(Up Smash Attack) Flip Kick
(Down Smash Attack) Break Spin Kick
Her throws are very much like Kirby's to boot: Ninja Drop (up), Back Drop (backwards), Super Throw (forward), Hyper Stomp (down)
Super Suit Specials
(Standard) Vulcan Jab: She'll unleash a rapid barrage of punches. Hold the button to charge it up and let go to release them.
(Side) Smash Punch: After this strong punch move is executed, she can pull off a combo string when pressing the button again a few more this, like Marth and Roy do.
(Up) Rising Break: She'll perform a jumping uppercut.
(Down)Super Shield: A force field will surround her. When she gets hit by a physical attack, she will counter like Marth and Roy. When hit with a projectile, she'll heal like Ness.