Party for One

Party for One is the twenty-fifth episode of My Adventurous Pony Friendship is Mathamatical, season one. In this episode, Marsha investigates her friends’ excuses for not attending one of her parties.

Dusk's Birthday Party
At the beginning of the episode, Marsha visits each of her friends and sings invitations to Dusk's birthday party. When she is finished, she is exhausted and remarks to Gummy, "Next time I think I'll just pass out written invitations."

Dusk’s birthday party is held at her bakery. Marsha tells Marshall Lee and Marceline she's happy they made it to the party, and the two say they'd never miss it. Marceline bobs for apples, but bites a fake spring-loaded apple that pulls her back into the vat. When Lee emerges from the apple bob, Dusk is clinging to her face.

Bubblegum compliments Marsha’s punch, but spits it all over Marsha's face when she sees Dusk dipping in the punch bowl. She forces a smiles and sips more punch, but spits it into a plant pot when Marsha turns away. Marsha joins Finn and Fionna, who compliment her party. Marsha accidentally knocks Finn and Fionna into a wall while dancing, but later all the friends and Dusk dance together. That night, when the ponies are leaving, Finn suggests that they "do this again soon”, and Marsha agrees.

Dusk's After-Birthday Party
The next morning, Marsha visits the Tree Fort and gives Finn an invitation to Dusk's "after-birthday party" that afternoon at 3 o'clock. Finn claims he can’t go because he  and Jake were going to the Cloud Kingdom later.

Marsha goes to Marceline's Cave to invite Marceline. She nervously says she can't go because she has to go by the family farm pick apples. Marsha scrutinizes her for a few seconds, smiles, and says, "Okie dokie lokie."

The scene changes to Princess Bubblegum's Castle, where Bubblegum is watching Marsh take out the trash. She tells him to take a shower because he smells, and he adoringly floats in the air while emitting pink heart-shaped bubbles. Marsha comes along and invites Bubblegum to the party. She declines, saying she has to finish a new formula she working on and gallops back into the castle. Marsha reassures herself, "A party is still a party even with only two guests!"

Outside Fionna’s cottage, Marsha invites Marshall Lee and Fionna. Lee says they'd love to go, but they have to house-sit for "Jerry", a Tiger. Marsha is surprised that there is a Tiger living in a house in Ooo. The two ponies hastily elaborate on their excuse before they fly off.

Something Strange is Going On
Back at her bakery, Marsha wonders how all her friends are busy. She sees Finn sneaking into the shop and uses a tin can telephone to eavesdrop on Finn. Finn picks up a wrapped package and leaves.

Marsha puts on Groucho Marx glasses and decides to secretly follow Finn. Finn delivers the package to PB, who says she'd hate for Marsha to "ruin everything.” Marsha acquires a new disguise, a bale of hay wearing Groucho Marx glasses. In a deserted alley, Bubblegum transfers the package to Fionna. Pinkie has added a trench coat and a baseball hat to her hay disguise. When Fionna walks out of the alley, Marsha tries to hop away, but Fionna is startled by the sight of her costume and runs away.

Right then, Marshall Lee walks by Marsha and accidentally greets her. Demanding to know what her friends are up to, Marsha chases Lee all the way to the famliy farm. Marceline slams the door shut before Marsha can get in. Marsha asks to take a look inside the barn, but Marceline tells her there's construction going on and she can't come in. Angered, Marsha leaves, and Marceline and the others sigh in relief.

Marsha Interrigoates Jake
Marsha declares that she knows who to ask about her friends’ “secrets and lies.” The scene cuts to Jake sitting in front of a viola in Marsha’s room. Marsha shines a lamp in Jake's face while Dusk secures him to the chair by tugging on his tail. When Jake dodges her questions by giving irrelevant information, Marsha becomes aggressive, and her asks her what she wants him to say.


 * "Tell me that my friends are all lying to me and avoiding me because they don't like my parties and they don't want to be my friends anymore!"
 * — Marsha

Jake repeats it and Marsha cries, “Aha! I knew it!” Her hair "deflates" and her coloration turns darker. Surrounded by darkness under a cone of light, she sadly repeats Jake's confession. She hands Jake the viola.

"Creepytown"
The scene fades in to Marsha thanking her "friends" for coming to Gummy's after-birthday party. The friends are inanimate objects voiced by Marsha. While making chit-chat and puppeteering the objects, Marsha experiences strange twitches that are accompanied by musical cues and color-card backgrounds that fade in and out. At a certain point the color-card backgrounds stay, and the inanimate objects move and talk of their own accord. They convince Marsha to never speak to her friends again. The background returns to normal to show a crazed Marsha moving and voicing the objects. She is interrupted by a knock on the door. Marshall Lee enters and apologizes for being in such a rush earlier. He invites Marsha to come to her family farm, but Marsha refuses and keeps playing with her imaginary friends.

Surprise
Lee ends up dragging Marsha by her tail to the farm. When they enter the barn, which has been turned into a party room, the other friends shout "Surprise!” Upset, Marsha says that they threw a farewell party to kick her out of the group, and they've been lying to and avoiding her all day. The friends explain that they were keeping Marsha's birthday party a secret. Marsha looks around at the decorations and the cake with her picture on it, and returns to her normal self. She pulls them into a group hug and the friends sigh in relief. She apologizes for doubting them, and they forgive her. Finn narrates his friendship lesson while he and his friends enjoy the party. Once he finishes narrating, Marsha asks her friends to dedicate the party to Dusk too, because she's upset that her party was cut short. The episode ends with an iris wipe on Dusk playing with a balloon.

Trivia

 * An episode from Sonic X is a lot similar to this, since this also has Marsha becoming very crazy.