This is, IMO, one of the most deep and active Mario RPGs ever!

User Rating: 9.5 | Mario & Luigi: Partners in Time DS
Mario & Luigi: Partners in Time is the sequel to the previous Superstar Saga (released in 2003 for GBA). Mario & Luigi must revisit the past and meet up with their baby selves to rescue Princess Peach and save the Mushroom Kingdom from the evil alien Shroobs.

The Gameplay is much like the first M&L where Players must explore strange and bizarre regions of the Mushroom Kingdom (Only this time, it's in the past and you have help from baby M&L) with challenging puzzles, hilarious storyline, memorable moments, and a battle system that will keep you on you toes. Game Time spent for complete progression may average from 15 to 20 hours.

Weather you're a fan of Mario RPGs, an RPG fan in general, or just a casual gamer looking for an edition to your DS Library, look no further than Mario & Luigi: Partners in Time!! ^_^