Ulala is a new character introduced in Metal Slug Attack.
The third known candidate of the Metal Device Project, Ulala's parents are part of the project as researchers. Like Perche and Ami, Ulala has a similar frame system to theirs, though her original frame is colored blue.
In battle, she carries a normal gun. She also has access to a Huge Launcher, a massive launcher she is able to carry single-handedly thanks to the perks of the Metal Device Project. This launcher has the power of a single air force division, shooting out numerous homing rockets to overwhelm her enemies. She later received a modified version of this launcher which shoots out a stream of lasers instead.
Though some consider her lucky due to her parents' position as researchers on the project, she has troubles with her parents' overly close relationship.
First appearing in "Destruction and Regeneration", a Ulala and Perche arrive at the ruins to investigate a burst of energy. They run into Sol Dae Rokker Arche and destroy it a second time. Exhausted from the battle, Ulala tells Perche to double check their surroundings, but finds that she has collapsed from exhaustion, and brings her back to base.
She's seen with Perche, Ami, Reika, Rita and Avvio in "New Generations!" where they're tasked with keeping a base secure while the heroes go off for a mission. Almost immediately upon their departure, the base is attacked by the Rebel Army. When Rita drives Norah off, Ulala supports Perche's decision to chase the enemies and destroy them before they can regroup. This decision backfires as they learn that they have fallen into a diversionary trap and they rush back to the base. By this time, they are too late, though Grazia has already retreated with her forces by then. Ulala, Perche and Ami are reprimanded by Marco for being careless.