Great Force

The Great Force is an item that appears in Mario & Luigi: Superstar Saga. It can be only obtained by making a different kind of espresso at Starbeans Café for the fourth time. Professor E. Gadd will then appear and give this item to Mario and Luigi.

Appearance
The Great Force looks like a small, yellow, triangular object.

Usage
While equipped, the Great Force allows Mario or Luigi to deal double the damage to enemies, but they will take double damage from enemies themselves. The Great Force should only be worn against strong foes whose attacks are easy to block or evade against.

Trivia

 * Due to it's appearance and even the name, the Great Force may be a pun of the Triforce from The Legend of Zelda series.