In Brawl, the player can put a Franklin Badge anywhere on their body, which will protect them from projectiles. When the Franklin Badge is equipped, the player can notice the badge emits light in a sparkling fashion, and it can be noticed by other players. However, the item will not stay on the player the entire match, so players must be sure to notice when it disappears from their character's body or if the sparkling light has vanished.
The Franklin Badge can't be broken like other reflectors, if a projectile overloads the Franklin Badge, it will simply either be absorbed or pass through the character.
The Franklin Badge can also be selected on the Special Brawl mode. When selected in this mode, the Badge remains for the entire duration of the match.
 Description from the Super Smash Bros. Brawl instruction booklet
 Trophy description
A badge you can put on to gain the ability to reflect all projectiles. It has exactly the same effect as other reflectors in the game, like the one Fox uses. In Mother, it was used to deflect PK Beam when fighting Starman Jr. In Earthbound, it was used to counter Thunder attacks. The lightning bolt on the badge is proof of its capacity. Its importance and usefulness made a deep impression on players.
The Franklin Badge first appeared as an item in Mother. It was given to the main protagonist, Ninten, after saving his friend Pippi from PseduoZombis in the South Cemetary. Another one can be found from a box in Duncan's Factory. It was used to deflect "PK Beam γ" attacks, normally a one hit knock-out attack, making certain fights easier. It also was an item in EarthBound and Mother 3, but was used to reflect all thunder attacks, including "PK Thunder", which made it an important item in both games. Franklin Badges in Brawl reflect any projectiles directed towards the one wearing it.
When Mother was first released, an official strategy guide also was released and it contained a list of items that are in the game along with a picture of each item. This included the Franklin Badge; however, the Franklin Badge simply had a smiley (refer to the gallery below for the image). The strategy guide also contained a contest that involved the reader cutting out a seal and sending it to the publisher. Out of everybody who sent in a seal, two-hundred randomly selected people won a Franklin Badge pin. When Mother 3 was released, a limited edition "Deluxe Box" was also released and contained the Mother 3 cartridge, a special edition of a Game Boy Micro, and a Franklin Badge pin. The Franklin Badge's design in Brawl is based on the Franklin Badge pins that were handed out for the official Mother strategy guide contest and the Franklin Badge pins included in Mother 3's Deluxe Box.