Boss Key

A Boss Key is an item in Donkey Kong 64 that is obtained after defeating a boss. There are a total of 8 boss keys through out the whole game. Boss keys have a DK signal on them, which is odd, because the bosses completely hate DK and the rest of the Kongs. Boss keys are used to unlock K. Lumsy's cage,

Trivia

 * The last boss key isn't earned by defeating a boss. Instead, the Nintendo Coin and Rareware Coin must be collected to obtain the Key in Hideout Helm.