Mario & Luigi: Superstar Saga features a battle system similar to those of Super Mario RPG and Paper Mario, in which timed button presses are crucial to both increasing damage of party attacks and reducing the damage of enemy attacks. This system, however, is even more important in Superstar Saga, as well-timed button presses can not only increase damage inflicted by attacks, but also completely avoid or even counter enemy attacks as well. Unique to Mario & Luigi: Superstar Saga is the Bros. Moves, which becomes available after new abilities are gained.Brothers Moves allow Mario and Luigi to attack as a combined effort with the use of Bros. Points (BP). How many points used determines the maximum amount of damage that can be dealt and the degree of difficulty required to execute the selected ability. The brother-based abilities do not affect the battle system exclusively; they can also be used outside of combat to solve puzzles to progress further into the Beanbean Kingdom.
In terms of gameplay, Mario & Luigi: Superstar Saga differs itself from most other role-playing games mainly due to the amount of interaction that is required between Mario and Luigi. Unlike Paper Mario, Superstar Saga requires active and continual co-operation between the two main characters in order to solve environmental puzzles as well as during battle.Where this game differs is to how much correlation there is between the two. For example, gaining an ability in the overworld will also unlock a new skill in battle.Despite the battle system, the game follows many role-playing game traditions in that the players increase power by “leveling up”, in which multiple statistical values, for example speed and defense, are increased by each level gain. Superstar Saga’s gameplay also incorporates collectible items that can be sold or bought at shops, such as badges and clothing that effectively boosts the player’s statistics when worn. The game focuses heavily on puzzle-solving and interaction between non-playable characters to progress the storyline. Like other Mario games released for the Game Boy Advance, Superstar Saga features the classic Mario Bros. arcade game which is compatible with all games in the Super Mario Advance series. The game also incorporates the rumble feature when played using the Game Boy Player.
The documentation appears to be the manual and a guide!
