Not to be confused with the Banana Peel item and the Banana Peel move.
Banana is an item in Mario Kart DS, which also appears in Super Smash Bros. Brawl as a sticker.
In Mario Kart DS
In Mario Kart DS, Banana is an item which can be left on the course or thrown forward as any other normal item. When one drives into a Banana, he/she will spin around and lose speed. Bananas seem to come out of item boxes more often when having a good position, and can also appear as a triple banana item. Triple Bananas, when fired, are dragged behind the kart. They can be then freed one by one by pressing the weapon button.
In Super Smash Bros. Brawl
Appears as a sticker.
Sticker Power Up
Flame Attack +4