Banana Peel (move)
Using the move causes him to toss a Banana Peel over his shoulder behind him. This move can either be used like a tilt or like a smash; the former will make the Banana Peel come out at a shorter arc, while the latter causes a much higher arc. Diddy can pick up Banana Peels from the ground and throw them for a small amount of damage and a slip. Additionally, if another character walks, runs, or rolls over a Banana Peel (or lands on top of one), they will slip and fall, and the Peel will move away from them a bit.
In Super Smash Bros. Brawl, it is common to slip on a banana peel, and then land on it once again. Since these Banana Peels are owned by Diddy, he cannot be tripped up by them unless someone else picks them up. Only two Banana Peels can be in play for each Diddy Kong. If he tries to use this move with two Banana Peels on the field already, Diddy will activate the animation but another banana will not come out. Diddy can also glide toss his Banana Peels, among many other advanced techniques, such as glide-tossing them down to reposition them on the stage, often called "dribbling". The versatility of Diddy Kong's Banana Peels make them quite useful for both offensive and defensive means, as well as stage control, being one of the primary reasons why Diddy Kong is a top tier character in Brawl.
In Super Smash Bros. 4, both the move and its associated item have been weakened. Diddy may only have one peel out at a time; trying to create a second results in Diddy shrugging after going through the motion. In addition, peels can only hit or slip opponents once, or be thrown twice, before disappearing. If Diddy Kong uses this move while holding an item, he'll toss it the same way as he tosses his peel. Peels will also disappear if they hit an opponent in midair. The move is still very effective for landing grabs and scoring KOs, but much less central to Diddy's playstyle compared to Brawl.
In Super Smash Bros. Ultimate, the move works similar to how it does in Smash 4, only the peel can be thrown twice before disappearing, improving its utility. Diddy could perform an infinite (named the "Pyramid Scheme") by repeatedly recatching it and throwing it through a soft platform onto the opponent. On version 8.0.0, Diddy became no longer able to immediately pull out another banana peel after throwing his previous one, thus removing the infinite.
Special Move customization was added in Super Smash Bros. 4. These are the variations:
Bananas are collectibles from the Donkey Kong Country games. They functioned exactly the same as coins from the Mario series, in that when a player collects 100, they will gain an extra life. Bananas can appear in bunches, which depending on the game can come in groups of five, ten, or twenty-five. Donkey Kong 64 instead contains 500 bananas in each world, with each character needing to collect the matching 100 of them to access boss battles, in addition to Golden Bananas needed to unlock worlds.
While bananas themselves are common within the Donkey Kong Country games, the concept of slipping on peels is not, though in Lanky Kong's phase in the final boss fight of Donkey Kong 64, he must lay giant banana peels on the floor and lure King K. Rool to slip and fall on them. Slipping on banana peels also appears as an Easter egg in DK's treehouse in that game. Both Donkey Kong and Diddy Kong are, however, capable of utilizing Banana Peels in the Mario Kart games in which they appear; in Mario Kart: Double Dash!!, the two also utilized Giant Banana Peels as their special items.