Fly (Donkey Kong 64)
From the Super Mario Wiki
Flies are enemies that appear in Donkey Kong 64. They are featured in the Bonus Stage, Big Bug Bash, where the objective is for the player to swat as many flies within the time limit. In Creepy Castle, there are a few flies located in a small silo. Tiny is the only Kong who can enter it, using her Mini Monkey ability. In the silo, Tiny must defeat every fly to earn a Golden Banana.