Sisilia is a new character introduced in Metal Slug Attack.
A member of the Ptolemaic Army, Sisilia uses her signature trumpet to motivate her fellow comrades to victory. Veronica seems to have influenced her decision into joining the Army, though she doesn't feel guilty about it.
She rides alongside her comrades on the battlefield on her bike. It is assumed that she is not old enough to use a motorcycle. Like Rumi and Madoka, Sisilia is a supply officer rather than a front-line combatant. If the battlefield becomes too dangerous for her, she will run away.
Sisilia is first seen in the Extra Ops "Bicycle Maiden", where she accompanies Veronica in dealing with the Skull Hermit. At the conclusion of this Extra Ops, she calms down the Skull Hermit and its smaller hermits with her trumpet, which they seem to enjoy.
She later appears in the Extra Ops "Dancing Brave", where she doesn't like the argument between Veronica and Dragunov over who should be using the PM Union. Later on when they retreat due to Aisha destroying it, she yells at them after they begin arguing again.
In the Extra Ops "Sadistic Emotion", Sisilia finds herself once again mediating the rivalry between Veronica and Dragunov, when they both decide to place her in the new Union unit. The base is then attacked by a Rebel Army force led by Navy and Izabella, who is specifically seeking her out. Sisilia is nearly captured by the Rebel scientist and jailer, but manages to revitalize Veronica and Dragunov with her song. The two rivals quickly work together to fight off the Rebels and save her from being captured.
- The sound Sisilia makes as she plays her trumpet (Close Range Attack)
- Sisilia deep breathing, ready to play her trumpet loud (Special Attack)
- Sisilia playing her trumpet cheerfully, the beautiful melody of her trumpet (Special Attack)
- The sound Sisilia makes as she gets knockback by enemies
- Sisilia screams as her bike is being destroyed and she falls to the ground (Defeated)
- Sisilia screams as she flees