Halloween

"Halloween" is Teen Titans Go! Season 2, Episode 10a (36a), and the 71st overall episode of the series.

Summary
When the Titans lost their own interest in Halloween, Raven tries to put the spirit of Halloween back into them.

Plot
The episode starts off with Raven preparing for Halloween by dressing herself in a Pretty Pretty Pegasus costume mainly Sparkle Face to unleash the power of darkness beyond the spirit of Halloween. Just when she was about to cheer the Titans a Happy Halloween, they didn't even cared as they continued to do their own businesses. Raven tried to impress them with pumpkins, ghosts and decorations. However, the Titans were not  impressed, scared, or even amused.

When she was worried about their thoughts for why they don't celebrate it, Robin claims that its President's Day. Starfire is reminding her from the last year of Halloween they had, dressed up as ThunderCats when they didn't feel so good after too much candy. But Raven corrects her that they shouldn't have eaten the candy with the wrappers still on. She claims that she likes to do scary stuff with them for being a half-demon, but Cyborg says that the best part of Halloween was supposed to be scary and now that they are older, it isn't effective anymore, but only on young children while Beast Boy claims that he's a full grown man now and does not have time for it. Raven tries one last scare to prove that Halloween is still scary and fails, leaving to her room disappointment.

Raven summons the Halloween Spirit after mixing up some ingredients specifically for this holiday in her cauldron pumpkin and begs for his help to bring the Titans' Halloween spirit back. The spirit from the pumpkin accepts her offer and transforms the other Titans into little kids which that wasn't a part of Raven's deal. The little Titans started to freak out and screaming after seeing all the Halloween decorations in the living room until they reveal themselves for how did they become even much younger than Raven. Some trick or treaters arrived at the Tower but the little Titans were thinking they were real monsters engaging the Tower lock down and self-defense weapons out of the main entrance, scaring them off. Just when little Robin calmed down he gets spooked by the spirit pumpkin. Shocked, he kicks it off in the air and breaks the pumpkin much to Raven's despair, allowing the Halloween Spirit to escape and heading down to bring the nightmares to life after scaring off the Titans.

The little Titans didn't know anything about the spirit of Halloween, making Raven to explain it out of her ancient legends book and shows them how to bring the spirit back to his realm in order to make the Titans older again before the moon sets or they'll be trapped as kids forever. They make their jack-o-lanterns with their Justice League costumes and they are off to trick or treating. However the little Titans were still scared but Raven cheers them up for they have to face their worst fear for what they need most which is candy. After trick or treating houses by houses, they got the Halloween Spirit's attention, bringing the decorations to life as the Titans tried to fight against him but with no avail due to their fear showing. They make a run for it around the neighborhood away from the monsters until they are cornered. Raven apologizes them that she ruined the Halloween for she summoned the spirit, but the little Titans are on the opposite for they really enjoyed it and starts to eat candy bringing them enough energy to fight against the monsters.

They become again ordinary decorations as the Titans are now facing against the Spirit of Halloween by lighting their jack-o-lanterns emanating light energy lasers enough to weaken the Spirit. Raven tosses her pumpkin below the spirit which allowed it to suck it down back to his realm. Victorious, the little Titans returned back to normal. Raven thanks them for spending the Halloween with her, as well Robin thanks her for reminding them how much fun Halloween can be. But to be sure, Raven tells him there is still one last thing, and Robin asked "What?", she answered "Boo!" scaring off the Titans and runs away again around the neighbourhood, while Raven claims that she loves Halloween in the end.

Characters

 * Raven
 * Robin
 * Starfire
 * Cyborg
 * Beast Boy
 * Silkie (cameo)
 * Halloween Spirit (debut)

Trivia

 * This episode aired one year after "Staring at the Future."
 * Both Mad Mod and the Halloween Spirit changed the Titans' ages, the first being "Salty Codgers" (excluding Raven as she either "accidentally" let Mad Mod turn them older (Mad Mod, "Salty Codgers") or did it on purpose so the Titans can go trick-or-treating while they're younger. (Spirit of Halloween, "Halloween")
 * On Friday, October 31, 2014 at 6:00 PM, this episode was paired with "Caramel Apples."
 * A new street on Jump City is showed and all of the house looks alike.
 * It is revealed that Raven's favorite holiday is Halloween.
 * When Raven showed the picture of the Halloween spirit in her book, one of the bats showed Batman's face.

Continuity

 * Kid Cyborg's design returns from "Slumber Party" when Cyborg had a flashback on his first game of Scary Teri.
 * Raven's love for Pretty Pretty Pegasus is seen again from her Halloween costume of Sparkleface.
 * This is the fifteenth time Raven was seen unhooded, and it is the first time Raven was unhooded for the whole episode without her signature cloak.
 * The picture of Robin on Mount Rushmore could be a reference to the way he became the first president in "Money Grandma."
 * It may also be because of the events of "Money Grandma" that the Titans' favorite holiday is President's Day.
 * Starfire's appearance as a child is the same from her sister Blackfire's memories in "Mr. Butt."
 * Beast Boy's juvenile appearance is nearly the same as seen from "Dog Hand."
 * Robin as a child is once more seen since "Dude Relax."
 * The Ancient Legends book appears for the seventh time. ("Legendary Sandwich", "Staff Meeting", "Little Buddies", "Real Magic", "Puppets, Whaaaaat?", "Salty Codgers")
 * This is the fourth time the puppet show appeared. ("Staff Meeting", "Money Grandma", "Sandwich Thief")
 * A garden gnome first seen in Uncle Jokes is seen outside of the Titans Tower for a split second.