Mario & Luigi: Bowser's Inside Story

Mario & Luigi RPG 3 (tentative title) is the upcoming third title in the Mario & Luigi series, for the Nintendo DS. It was confirmed on October 2 at the Fall 2008 Nintendo Conference and is currently slated for release Feb. 11, 2009 in Japan, and April 1, 2009 in America.

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Gameplay
The trailer shown at the conference did not reveal much of information, but one could see a giant spherical Toad rolling on the screen, Mario and Luigi using a Green Shell on a green bug-like enemy, and Bowser using Fire Breath on two tree-like enemies.

Battles seem to have changed little, with Bros. Items making a return. Bowser also has a system of attack items. A new element has been added to battles, a meter at the bottom of the screen with Mario and Luigi's heads on it. It is currently unknown what purpose this meter serves. Additionally, there are now six categories of attack during battle, as opposed to Mario & Luigi: Partners in Time ' s five, or Mario & Luigi: Superstar Saga ' s four. No details about the sixth type of attack are known. It appears to be a brown sphere and a white sphere, but that is not certain.

Overworld icons have slightly changed. They now display the health of the character. Bowser uses two buttons in the overworld, X to punch, and Y for firebreath.

It is also possible that Bros. Items and Bros. moves have been merged, or that Bros. attacks will return, since in one image, below the HP number there is a second number next to a Green Shell icon. Also, Mario and Luigi use a Bro Flower in the trailer, and are seen to change into their fire suits.

The Japanese title of the game is Mario & Luigi RPG 3!!!. It is possible that, like in the two preceding games, the title of the game will be related to the gameplay. It is currently speculated that the three exclamation points reference the three playable characters.

Playable

 * Mario
 * Luigi
 * Bowser

NPCs

 * Princess Peach
 * Toadsworth
 * Toadbert
 * A new yellow bomb-like character with a lit fuse on its head.
 * Kamek
 * Toads
 * There are speculations that Fawful or Prince Peasley will appear in the game, but they are unconfirmed.

Enemies

 * A new type of Shy Guy
 * Goombas (An enemy to Mario and Luigi. Bowser uses them in battle)
 * Koopas (An enemy to the Mario Bros. They obey Bowser)
 * A new Goomba-like species that is pink-orange with black eyes (in Bowser's Stomach)
 * A round dumpy creature that looks like a Flurry and holds a club (in Bowser's Stomach)
 * A Treasure Chest with Banjo-Kazooie like eyes
 * Two different types of trees with eyes.
 * Green Spinies (in Bowser's Stomach)
 * An insect creature that resembles Fawful.
 * A Monty Mole-like creature with a resemblance to Fawful.