Diddy Kong is a fictional character from the Donkey Kong video game series created by Nintendo. He first appeared in the game Donkey Kong Country in 1994 as the sidekick of Donkey Kong. Diddy is a small, anthropomorphic monkey known for his red cap and shirt, and he is characterized by his agility and speed. In the games, Diddy Kong often helps Donkey Kong in various adventures, battling enemies and collecting items. He is also a playable character in several spin-off games, including the Mario Kart series and Super Smash Bros.. Diddy Kong has become a popular character in the Nintendo franchise, known for his playful personality.