Nintendo officially announces the development of Mario & Luigi: Partners in Time for the Nintendo DS.
The game Mario & Luigi: Partners in Time is released in Japan for the Nintendo DS handheld console.
Mario & Luigi: Partners in Time launches in North America for the Nintendo DS.
Mario & Luigi: Partners in Time is released in Europe.
Shroobs, a race of alien invaders, arrive on the planet and begin attacking inhabitants of the Mushroom Kingdom.
Mario and Luigi discover the Shroobs' plan and use time travel to visit their own childhood selves to gain strength and allies.
The younger versions of Mario and Luigi team up with their adult selves to navigate challenges and fight the Shroobs.
The Mario brothers confront and defeat the Shroob Queen, ending the alien threat to the Mushroom Kingdom.
With the Shroobs defeated, the Mushroom Kingdom returns to peace, and the Mario brothers return to their time.
