Princess Peach is a recurring character in the Paper Mario series, as well as the Mario series as a whole. She is the current reigning monarch of the Mushroom Kingdom. She is close friends with Mario and Luigi, though she and Mario share a special romantic bond. She resides in her castle just north of Toad Town.
In Paper Mario, she is once again captured by Bowser. He used his castle to lift her's into space using the Star Rod. Mario is defeated since Bowser is invincible. After the main part of each chapter, She goes through the castle with the help of Twink the star kid. She finds out where each new star spirit is and Twink tells Mario where to go. She and Twink also battle Kammy Koopa in the final Battle. Her wishes give enough power to Twink to beat Kammy and for the star spirits to undo the new Bowser's Invincibility.
In The Thousand-Year Door, she gets a magical treasure map to find a legendary treasure and she summons Mario to help. Though before he gets there she is this time captured by the X-Nauts because they need a host for the Shadow Queen. She is held in the X-Naut Fortress on the Moon. She teams up with TEC XX, the base's main computer (who falls in love with her along the way), to try to escape the base and find out their real intentions. Peach performs various tasks during her time in the base. Along with TEC, she dances and answers quiz questions. TEC also instructs Peach as she sneaks through the base to discover information. While doing so, she disguises herself as an X-Naut and later steals information from Grodus's room with only an invisibility effect hiding her nudity. She is taken to the Shadow Palace after Grodus discovers TEC's double-crossing. In the final battle, the Shadow Queen uses her body as a vessel to fight. When the Crystal Stars give Mario the power to hurt the Shadow Queen, Peach gives Mario the rest of her power to restore his power.
In Super Paper Mario, she is captured by Count Bleck along with Luigi, Bowser and most of his army. Count Bleck forces a marriage between Bowser and Peach to create the Chaos Heart. Peach is the first to be secretly released by Dimentio. She actually gets to join Mario in this game as the second of 4 heroes. Her abilities are using her parasol to fly, using it as a shield for infinite defence, and normal jumping. Her final battle is against Mimi, who insults her about always being rescued by Mario and Luigi. Peach gets mad and demands that the Mario Bros let her do this battle alone. When Mario is fighting Count Bleck and he is still invincible, she along with Luigi and Bowser show up and the Pure Hearts Start to work. She can be used to face the last two battles along with Bowser and Mario and is the best choice for people who want to 'play safe.'
In Sticker Star, she attends the Sticker Fest. After Bowser takes the Royal Sticker, she is kidnapped offscreen as Mario is knocked out. Near the end, she is tied to a chain with Bowser Tape near the final battle. In the epilogue, she is seen attending the Sticker Fest Revival.
In Color Splash, Princess Peach is first seen going to Prism Island to investigate the strange disappearance of her Toads. For a portion of the game, she can be found in the inn and will heal Mario whenever he interacts with her. Halfway through, she is once again captured by Bowser. She is not seen again until the end of the game when Mario rescues her. However, she does leave Mario videos through Holo Peaches which are scattered along his quest.
In The Origami King, Peach is seen as an origami character thought to be controlled by King Olly. She asks Mario if he will crease himself and be reborn, just like her but then says it doesn't matter as his answers are paper thin.
Princess Peach could be considered the ideal model of a princess. No matter what situation she finds herself in, she retains her poise and grace. She is just as comfortable, however, exploring the world with Mario and friends, showing courage and spunk befitting her adventurous nature. She is kind and compassionate, often putting the needs of others before her own. Finally, Princess Peach is very relaxed; the rare occasions that she loses her composure, however, often result in a fit of indignant verbal thrashings.
Princess Peach is moderately tall, though still standing nearly a head above Mario. She has a slender figure, which she modestly covers in her trademark pink dress. Her elegant white elbow-length gloves and crown complete the ensemble, neatly accenting her flowing blonde hair. She has a sweet disposition and is rarely seen without a smile on her face.
Though rarely joining Mario on his adventure, Princess Peach did exhibit some very helpful talents during their adventure in Super Paper Mario. Peach, though only able to jump to humble heights, makes up for her lack in jumping prowess through her ability to gracefully float in mid-air with her parasol. Furthermore, she can use this parasol in battle, hiding beneath it to protect herself from nearly all airborne attacks.
- A glitch in Paper Mario allows the player to play as Princess Peach within the final boss fight with Bowser. The game will crash if hit by any attack other than Stomp.