Sushie

"Uh-huh... Oh... Oh! You're going to the volcano because you want to save the princess from some bad guys? What...a touching story! Romantic stories like that... just touch a soft spot in this heart of mine. That does it! I can't let you go alone! I, Sushie, will be by your side until the end!"

- Sushie

Sushie is Mario's seventh party member in Paper Mario. She is a Cheep Cheep residing in Yoshi's Village on Lavalava Island.

Her pause menu description states that she "loves romantic stories and cries at the drop of a fin", implying that she is very sensitive and soft-hearted. However, according to the Yoshi children, she is very bossy. Her name is based on the famous Japanese dish.

Paper Mario
At Lavalava Island, Mario enters Yoshi's Village and sees Sushie watching over the Fearsome 5, a group of young Yoshis, as their babysitter. She thinks they are planning to do something dangerous, but cannot prove it. Once Mario returns to the village after visiting the entrance of the volcano, he finds that the Fearsome 5 are missing. A Yoshi tells him that Sushie chased after them into the Jade Jungle. As Mario enters the jungle, Sushie calls for his help from atop a tree. After he uses his hammer to knock her out of the tree, he tells Sushie that he is looking for the Yoshis as well. Sushie decides to team up with him to look for the Yoshis together. When Sushie hears that Mario is going to Mt. Lavalava, she scolds him for planning to go to such a dangerous location. In response, Mario tells Sushie about his quest to save Princess Peach. Sushie says it is a very romantic story and joins the party. During the fight with Lava Piranha, Sushie's water attacks are quite helpful. After Mario reaches a dock, he can ride on her back on the surface of water and dive underneath if he chooses.

Sushie has a daughter named Sashimie. During the game, Sashimie sends her mother a letter, stating that she is going to have a baby, meaning Sushie will soon be a grandmother. There is another letter to Sushie from Raphael the Raven at the Toad Town Post Office. In the ending, Sushie reads a letter inviting her to the party at Peach's Castle. When two of the Yoshi kids run by, she yells at them. At the party, Peach thanks Mario and his party members for bringing peace back to the kingdom. During the credits, Sushie hops around on the Star Cruiser.

Tattle
Goombario can use Tattle on Sushie only when Mario visits Yoshi's Village for the first time but before he leaves the village to catch up with Professor Kolorado.
 * "She's a Cheep Cheep. Her name is Sushie. She's sort of meddlesome. At least that's what the Yoshi kids say. According to them, she tries to control their lives. I think she's just trying to take care of them, but she doesn't seem to be succeeding."

Super Mario-Kun
Sushie makes an appearance in Super Mario-Kun specifically, the issues with a Paper Mario arc. She follows the role she has in the game the issue is based on.

Super Paper Mario
In Super Paper Mario, Sushie appears as a Catch Card found on the eightieth floor of the Flopside Pit of 100 Trials, as well as on a photo in Mario's house.

Paper Mario

 * Start Menu description: Sushie's a kindly Cheep Cheep who worries about everyone. She loves romantic stories and cries at the drop of a fin. Press once to ride the waves, again to dive below the surface. Sushie's specialty is the water attack.
 * Official Nintendo Player's Guide bio: Adapting to life out of water, the hapless Cheep Cheep, Sushie, has made a place for herself among the Yoshis on Lavalava Island. For the greater good of the Mushroom Kingdom, she'll take leave of the island to join your team. She can give you a ride when the situation calls for a swimmer.

Trivia

 * Like the other Paper Mario partners, Sushie was originally going to appear with updated sprites in the sequel, Paper Mario: The Thousand-Year Door. However, she and most of the others were removed for unknown reasons.
 * Sushie is the only partner who does not have any sprite data in Super Paper Mario.