Abigail is a new character introduced in Metal Slug Attack.
Abigail is a female officer of the Rebel Army, who relies on laser-using drones in combat. At some point in the war between the Regular and Rebel armies, she apparently had a crush on Trevor Spacey - her face turns red when thinking about him. She seems to place a higher priority on her duties than her feelings, since despite her feelings for Trevor she continued to serve in the Rebel Army.
Compared Allen O'Neil and Allen Jr. who seem to be relaxed, Abigail maintains a serious tone when talking to Morden, respecting him as a superior. She is unnerved when she sees others speaking casually with Morden (e.g Allen O'Neil), and is completely loyal to him, stating that the world is his alone and she will destroy anything that endangers or belittles him. She has a high rank in the army; even higher than Allen (though he states that he stays as a Sergeant so he can fight in the front lines).
She also has a younger sister, Beatriz, who is also another officer of the Rebel Army. Both are skilled at long range combat, but poor in close quarters.
First appearing in the Extra Ops "Sand Locker", she is assigned to locate Allen Jr.'s after he failed his mission and had gone missing in a desert. At the desert she found the Ptolemaic's Sandmarine. Thinking that he was in there, she blasted a hole in the Sandmarine with a laser, but only found a POW riding a motorbike instead. The POW escaped and heads to Trevor's location, where he was stuck in the desert. She spots Trevor and wanted to go to him, but her attack made the Sandmarine spot and attack her. After a decisive one on one battle, she finally destroys the Sandmarine, but Trevor was already gone. Whether or not she finds Allen Jr. remains unknown.
She later makes another appearance in the Extra Ops "Queens Battle", where she is fighting a Jupiter Queen but struggles to defeat it. Her sister, Beatriz, is informed of this and arrives. With her sister's help, they take down the Jupiter Queen. After their victory, Trevor speeds through on a POW motorbike, causing Abigail to blush.
Sometime after these events, an Iron Nokana was built specifically for Abigail, which she called the Spacey Nokana.
During the Extra Ops "Double Face", Abigail is at the engineering department to check up on the statuses of the new Emain Macha twins, the Drache and Tiger Macha. Suddenly, an unknown intruder breaks in and starts causing havoc. She trusts one of the engineers and allows him to deploy the Drache Macha. She is surprised when the intruder resembles her. After a short battle, she is wounded and the Tiger Macha is badly damaged. The intruder suddenly stays still, confusing her. The Professor speaks through the robot, telling her that he wanted to test out the clone before he has it depart. A soldier comes to assist her; she tells him that the Tiger Macha must be ready as soon as possible and to bring Beatriz to her room.
Abigail makes multiple appearances in Another Story, though with a minor appearance in most of them.
Her first major appearance is in "Guilty Child", where Morden reluctantly allows her to oversee the trade with their client, the Amadeus Syndicate. When he dismisses her, she is unnerved when Allen O'Neil walks in and seemingly disrespects Morden by not saluting and addressing him. When she leaves, Morden tells Allen to go with her to ensure she does not get too aggressive towards the Amadeus Syndicate.
At the meeting zone, she waits for the Amadeus Syndicate to arrive and orders her soldiers to take position. She notices Allen and asks him what he is doing here, believing that he came along because he is stupid. Allen tells her that she should wonder why he was sent along. When the Amadeus robots arrive, they start firing on the rebels, to which she calmly orders the soldiers to attack.
Allen accompanies her on the way to the Amadeus headquarters to find out what has happened. On the way, they encounter multiple Mecha Allens and Morden Robots. In the first encounter, when an unknown AI talks with a girl's voice, she presumes it to be a simple voice modifier. This is proven wrong in the second encounter where the voice reappears. Allen saves her from an exploding Morden Robot and the two continue on their way.
When they arrive, Abigail prepares to punish the confused soldiers. Allen stops her, telling her that they should hear them out first. The soldiers take the two to their leader, Amadeus. She asks him why he sent robots at her, confusing him. Amadeus shows her that he controls all the robots, before the unknown voice reappears again. The AI reveals herself and likes the rebel officers, forcibly placing Amadeus into a Mother Computer to fight them. After the battle, White Baby leaves to get better "toys". Amadeus tells her about White Baby's origins and purpose, to which she vows to destroy it, as the world is for Morden alone and anything threatening him must be eliminated.
Returning to rebel headquarters, she informs Morden of the events. When Morden is casually talking with Allen, Abigail arrives and is annoyed with Allen's casual attitude towards Morden. She later tells Allen that she saw his son and how it's a shame that he follows him, prompting a quick backlash from the sergeant.
Endless Summer Vacation
Abigail goes to the beach with her sister to relax. She senses that Trevor is nearby.
After the rest of the ladies chase after the Martians to capture them and get their wishes fulfilled, Abigail surprises Trevor. She offers to assist him with the situation, but he is skeptical because she is part of the Rebel Army. She signs a pledge to ease Trevor's suspicions and tells him that she wants her wish fulfilled when they finish.
After defeating the Aikawa sisters, the group finds themselves at a brook. Beatriz tries to cross to show that she can swim, but is swept away by the current. Trevor saves her and monkeys suddenly surround them. She tells the monkeys to watch over her sister before crossing with Trevor. Trevor tries to cross the brook from above, but falls and crashes into her. Trevor becomes embarrassed and quickly leaves to find the Ptolemaics, slightly annoying her.
She helps Trevor in regaining the Martians the Ptolemaics captured. They later deal with an enraged Rootmars, who peacefully leaves with his Martians. Before leaving, she gives him a hickey. She later meets up with Beatriz, who ran from the monkeys to find her.
- Her usual Metal Slug Attack victory pose has her laughing at an opponent's destroyed base (like most Rebel Army infantry). She switches to a blushing animation if Trevor is included in either deck (either normal, motorbike or Special Trevor)