An evil witch has stolen Princess Peach's voice, replacing her fair speech with explosives! As chaos breaks out in the Mushroom Kingdom, Mario and Luigi head for the castle and meet up with Bowser, who just arrived to kidnap the princess. When they find out what happened, these sworn enemies join forces and follow the witch to a neighboring kingdom. After an aerial ambush crashes their ship and sends Bowser to who-knows-where, Mario and Luigi embark on foot, learning new moves and combining their brotherly might to fight off enemies, as they venture toward the kingdom's castle.

Combine your brotherly powers to pull off powerful Bros. Powers and Bros. Actions. With Bros. Powers, Mario and Luigi tag team on enemy baddies, unleashing the full force of their combined plumber power in special button-combo maneuvers. With Bros. Actions, Mario and Luigi cooperate to get access to hard-to-reach places--for instance, Luigi can use Mario as a trampoline and Mario can piggy-back on Luigi and spin to fly them across short distances.

The music and graphics are equally superb. The graphics easily match anything on the GBA, lending the game a bright, cartoonish appeal without shading the game in an overly-cute style. Much of the music is taken from previous Mario adventures, making the game's soundtrack a medley of Mario's greatest hits.

Unique RPG elements allow you to level up Mario and Luigi, increase their stats and powers and even buy them equipment.

Explore the strange BeanBean kingdom using a unique simultaneous-control setup that lets you control each brother separately or team up for super moves.

Laugh out loud at the hilarious character dialogue.

Enjoy the involved story, puzzle-solving challenges and the experience of a classic role-playing game combined with the jumping challenges of a platformer and an all-new, reflex-testing battle system.

Interact with other classic Mario characters and enemies throughout the game.

Pak also includes Mario Bros. Battle and Mario Bros. Classic. Both games can be played in Multi-Pak mode with all the Super Mario Advance games.

Mario & Luigi: Superstar Saga is packed with an abundance of absurdly-fun minigames like Border Jump, in which Mario and Luigi must skip rope with two Hammer Bros. Other minigames include Mystery Carts, Star 'Stache Smash, the Barrel Game and more. Each minigame offers an opportunity for valuable rewards.