Mimi is the second boss in Super Paper Mario. She is the shapeshifter in Count Bleck's army. She often changes into other characters such as Merlee, Merlon, Bowser, Peach, O'Chunks, Count Bleck, and King Sammer. She can also transform into a giant robotic spider (and if you flip into 3-D while in the battle, gears can be seen, hinting that she's a robot) which she calls her true form (She calls it that most likely due to it being her main fighting form). It is said she has a crush on Count Bleck. However, when you take the quiz for the real Merlee, you can ask who she likes. She says the man is in the room right now. Considering this, she could also have a crush on Mario.
One of the best attack strategies for her is to hide under your umbrella as Peach and wait for Mimi to get tired. This way she can't hurt you making it an easy battle. Suprisingly this works on her attack where she summons a wave of Rubees and you just bounce of the top of them. Peach is the obvious choice for this battle.
According to Dimentio, her idea of a perfect world is a gem-filled pool surrounded with hunky lifeguards. Dimentio might know this because Mimi accuses him of having read her diary.
You fight her three times. You face her as the Boss of Chapter 2-4. The battle takes place in a lady's bathroom in Merlee's basement. She starts the battle invincible, but Merlee's cheers break the invincibility. You face her a second time in 6-2, where she is in her normal girl form. She loses but reveals that she was just wasting your time. Peach does her final battle against her in 8-2. She is saved by Peach after it and she helps reform the Pure Hearts.
She has an odd screechy voice provided by voice actress Keira Russell.
Mimi, along with Bonechill is one of the only two bosses in the game to change appearance during their fight (Mimi loses her legs, while Bonechill loses his scales).
- Even if she does take the form of a Flipsider, her true form is the robotic spider. This is especially strange, due to her having real emotions (i.e. Love, anger, jealousy, etc.)
- She is the only character in the game that changes what they wear.
- As explained by Carson, Mimi might be a failed pixl creation or a failed experiment by a witch with shapeshifting potions.
- Her birthday is May 5.
- Her childhood nickname was the "Odd Porpoise".
- She likes to watch reruns of Super Ultra Goomba Bros..
- Her favorite smell is Old Cheese.
- When showering, she washes off the mildew.
- Her favorite food is tangerines.
- Her type of guy is present in the bathroom during the quiz.
- She wants a boyfriend.
- Her best feature is her effervescent personality.