Tikki

Tikki is a kwami that is connected to the Ladybug Miraculous, and with her power, its wearer can use the earrings to transform into a ladybug-themed superhero, the current route for the Ladybug Route.

Appearance
Tikki is a small crimson creature that is 4" tall. She has a large head, a tiny body, and dark blue eyes. Additionally, she has freckles across her face. She resembles a Napstablook, with two antennae, a large black spot on her forehead, back, and each side of her head, and a short tail with three tips aligned vertically.

Personality
Tikki is calm and collected while being optimistic, loving, kind, and encouraging. Having a lot of wisdom, Tikki is very open to giving advice, and she will call animals out for bad decisions if necessary. Although she can become annoyed or exasperated with others, she doesn't stay upset at them for long, only wanting what's best for them and those around them. She believes in the importance of saving the world above her own needs, even willing to help Mary destroy the barrier and escape instead of helping Flowey getting herself in trouble.

Main Story
Tikki never appeared in Undertale because she was a character from Miraculous Ladybug.

Neutral Route
Tikki is the narrator of the Ladybug Route if the player names the fallen child "Ladybug."

She tells the protagonist to do different endings even though she is polite and non-genocidal in show.

True Pacifist Route
If the protagonist doesn't kill any animal, Tikki will tell her to befriend Papyrus, Undyne and Alphys. Tikki will be nervous if the protagonist goes to Asriel's battle.
 * If the protagonist kills any animals (except for the Main Characters), Tikki will be a "meh" to her.

Epilogue
Tikki will appear in barrier broken, she will say nothing unless the protagonist goes to the Surface.

Genocide Route
If the protagonist kills all of the animals in the Desert, Tikki becomes disappointed her. She will become mad if the protagonist kills all of the animals in Sanddin. When Sans becomes defeated, Tikki starts to become an akuma and transforms Ladybug into Miss Fortune.

Tikki doesn't appear as Molly because she transformed Ladybug into Miss Fortune.

Mary
Tikki sees Mary as a fantastic hero who has improved over time, a talented designer, and a sweet friend to the animals. The duo have a warm relationship, with Tikki cheering up Mary whenever she is alone or assisting her in anything, including her friends or plans to go to the Surface.

Flowey
Tikki doesn't who Flowey is. In the end of the Desert, she remembers that Flowey is evil. If Tikki agrees with him, she will be in trouble.

Toriel
When Toriel first meets the protagonist, Tikki starts to act like a cat that she thinks that Toriel is a civilian from Paris. True fact on Toriel that she is a domestic sheep.

Snails
Tikki in front of snails makes her feel like that she got shot from a dart gun.

Annoying Parrot
Tikki is mad about the Annoying Parrot when the protagonist tries to get the artifact but her inventory has "too many of parrots."

When the protagonist "deploys the parrots," the parrot starts to absorb the artifact and Tikki got mad.

Trivia

 * Tikki's name means "happiness" in another language.
 * Tikki is the only kwami who is referred to by the feminine pronoun in the Ladybug Route.
 * When attempting to name the fallen child "Tikki," the response becomes "You cant use that name! What if you are Ladybug!? WHAT IF YOU ARE LADYBUG!?" and prevents the name from being used.