Adventure Time: Come Along with Me Season 10, Ep 13
Far in the future, two friends beseech the King of Ooo for information about a relic of the Great Gum War. Series finale.
Adventure Time: Broke His Crown Season 7, Ep 27
When Ice King's magic crown goes haywire, Marceline and Princess Bubblegum resort to extreme measures to help him.
Adventure Time: I Remember You Season 4, Ep 25
Ice King visits Marceline to ask for help in creating a song to attract princesses, but Marceline struggles to deal emotionally with his presence.
Adventure Time: Varmints Season 7, Ep 2
Marceline helps Bubblegum with some varmints in her pumpkin patch.
Adventure Time: Princess Day Season 6, Ep 14
LSP and Marceline spend spend some quality time together.