Lisa

Lisa is a character created by Piggy game developer IKEA, She is also used by YouTuber Piggy-Movies as a horror character in his series "Nightmare Party". She mostly attacks people in his vids when they are not looking or unsuspecting in which she jump scares the audience.

Appearance
She appears to a humanoid ghost with pale skin color, rust clothes, black liquid coming from her mouth, black eyes, black hair and when her arm is cut off causing her to bleed black liquid.

Personality
She has a demonic personality as seen when she attacks from behind

NIGHTMARE PARTY -Piggy Short Movie
In this video Lisa appears twice, once when she murders Zuzy and the second where she murders George Piggy after his parents had assured him there's not such thing as monsters.

PICKLE RICK MEETS BOSS! 3-Piggy Short Movie
In this one Lisa appears as one of the inmates in Pickle Rick's jail cell. She creeped out Pickle Rick and Officer Doggy causing him to close the door and run away scared after he let Pickle Rick out.

NIGHTMARE PARTY 2-Piggy Short Movie
In this episode Lisa along with George Piggy, Zee, and Zuzy are the many people jump scaring Mother Piggy, Father Piggy, and Officer Doggy. At the end of the video though she kills Father Piggy and sends Memory to kill Mother Piggy in which Memory succeeds causing Officer Doggy to get the heck out of there.

NIGHTMARE PARTY 3-Piggy Short Movie
In this episode Lisa scares Penny Piggy and Zizzy. Until Zizzy chops her arm off and her and Penny Piggy run away.

NIGHTMARE PARTY 4-Piggy Short Movie
In this one she only has a brief appearance where she jump scares the audience.

NIGHTMARE PARTY 5-Piggy Short Movie
In this one she has a brief appearance too where she just jump scares Zizzy