Public Lord Peach created the Mario & Luigi: Partners In Time time machine, but it was the same tool that brought about a massive problem for everyone. When she opened the portal of time, suddenly a bad man appeared and kidnapped her. Shroobs took the princess away and made an evil plan to take over this world thanks to the power of the time machine. This information is told to Mario and Luigi; the two continue their journey to rescue the girl from danger as well as save the world from the evil plan.
Monsters from the Dark Purple Mushroom planet will be the main rival of the two in this second adventure. These monsters are one of the weirdest enemies ever seen, needing the coordination of both heroes to win. But the surprise has made your forces stronger, Mario and Luigi baby will also join the fight. With this 4-strong Mushroom Kingdom lineup, no force can stop it. But don’t despise opponents, they also have tools to defeat you.