Keys Up My Ass

Keys Up My Ass is a minor anti-hero in Undertale. She likes to cause trouble by going into others asses.

Personality
Keys does not show any major personality traits, aside from that she likes pranks and mischief.

Jesus has mentioned how she has fully ratio'd entire batches of Ed's Sauce with her own sauce. Customers of Good Burger argue that Key's sauce is better than Ed's. This is because a scientific study has proven that MTF sauce is more nutritious than regular sauce, because of all the estrogen in it.

Role in Undertale
In once scene of the movie, Freddy Brody is placing an order at Good Burger. Suddenly, he screams in agonizing pain. Jesus looks behind him and Keys can be seen inside his ass, sticking out through his pants which are still up. Freddy yells "OH MY GOD! THERE'S KEYS UP MY ASS!" and cries. Keys persists on staying in his ass, and does not come out. When she does, Freddy is on the floor in a fetal position. This is what gave him the nickname "Freddy Got Fingered" in the rest of the film. This scene was improvised by Key, and everybody on set except Freddy laughed at it, so it stayed in the film.

Freddy and Keys can be seen on the poster for Undertale, representing this scene.

Keys is seen again at the end of the film, mourning the death of Whitey Duvall and Roxanne.

Trivia

 * The actress, Key Paxton, had her HRT paid for by Jesus outside of filming, but she has not gone under surgical transition, stating that she prefers the way her body is.


 * As of 2022, Key has a successful job as an online sex worker, and works with her wife.