Mario & Luigi: Partners in Time, known in Japan as Mario & Luigi RPG 2 (マリオ&ルイージRPG2, Mario ano Ruīji Ārupījī Tsū?), is a role-playing video game developed by AlphaDream and published by Nintendo for the Nintendo DS video game console. It is the sequel to Mario & Luigi: Superstar Saga, and the fifth game in the Mario RPG series. Its graphics and general style greatly resemble Superstar Saga's, although the content and storyline are considerably darker.