BTW I think I'm just going to make the app for her.
NPC Character of Choice: Margaret Moonlight (also known as the Goddess of Death)
Game of Origin: No More Heroes 2: Desperate Struggle
Power: Margaret has abilities similar to a ghost in that she can teleport by slowly fading and reappearing somewhere else. She may be also able to defy gravity for a short period of time since she is seen to float for a certain amount of time during the battle.
Weapons:
Spoiler

Le croissant du ange are modified Barrett M82 rifles without scopes. They have been modified to be used also as scythes with tungsten alloy scythe blades growing out of the buttstock, and elegantly designed, angel-wing themed handle grips at the barrel and muzzle. She holds each rifle under her arms when firing, causing her to spin from the recoil, and when she uses them as scythes, she holds the grips on the barrels of the guns and uses strong slashes to send her enemies flying. She uses 12.7 x 99 mm hollow-point bullets in her rifles for maximum damage.
Weaknesses: She is human, though it is still somewhat tough to kill her due to her skill.
Appearance:

Personality: Her outfit and weapons all have a grim reaper motif. Margaret seems to be honorable and enjoys music and fighting. She has an extensive vocabulary and shows no fear of death. For example:
When Travis ultimately slays her, she is instead more concerned about whether he memorized her song or not.
Morality: Neutral: Currently she is working on her own, for her own reasons.
Biography: There is little to nothing known about her backstory. All that is really known is that she is with the United Assassin's Association and was ranked Number 4. Margaret Moonlight's ranking battle against Travis takes place on top of the roof of Supermarket Guan's where she meets Travis Touchdown. She whistles her theme and asks him if he's heard of it, but he just replies with "Nope". She then says how sad that is and offers to teach him her song implying that he'll learn the song before he dies. She puts up a tough fight, but after losing both her weapons she is impaled by Travis's Beam Katana. She then asks him what he thought of the song, with his reply being that it was "catchy as hell". He then slices out her midsection, disemboweling her as she asks if he remembered the song with her dying breath. He claims that he remembered it "100 percent". As she began to fall, she replies saying "That's so...sublime."
She is alive now and in the real world. She resides in China, and is in the Warehouse District.
Traumas: None that is known.
Notes: Her age is also unknown. I've read on several sites that she is 14-15, but her true age is estimated to be 21-25. So I'm just going to go with her being in her early twenties. She might also be a possible rival of love with Komachi and Lady, as she might develop feelings for Dante... or Jake.
Also her theme:
Seems to be mostly targeted towards Travis, but it is still her theme and it IS catchy as hell.