In her first appearance, Nova is sent from the future to destroy the newly built Slug Gigant MK II, which she succeeds in doing.
Nova attacks a Regular Army base with assistance from a new Kraken. Nova's almost succeeds in taking the base, but Mello arrives and helps fight off the attack. Exchanging a few words with Mello, Nova retreats to prevent from being captured.
Nova later returned with a special Kraken to assist the present day Rebel Army. During an attack by the Ptolemaic Army, Nova fights Lucy but is forced to retreat when Lucy's frog mecha intervenes.
|Metal Slug Villains|
Rebel Army: General Donald Morden | Allen O' Neil | Allen Jr. | Abigail | Beatriz | Abul Abbas | Vita | Navy | Nova | Rapid | Shizuka | Destrade | Julia | Aisha | Huracan | Izabella | Grazia | Loretta | Norah | Chloe | Dion | Vicky | Romy