Bongo Bongo

Bongo Bongo is the boss of the Shadow Temple in The Legend of Zelda: Ocarina of Time. Noted to be one of the strangest bosses in the game, along with one with, possibly, the most disturbing backstory, Bongo Bongo is the strongest boss in the game, and believed by many players to be the hardest in the game.

In-game
Bongo Bongo's backstory is unknown, although there are many chilling details about him and his fight that suggest he had a truly terrible death, including the fact that he is hanging from the ceiling by his feet, has detached hands, and is playing a song on his drum that sounds like an execution drumroll. Bongo Bongo also sings or chants along to the beat. There is a commonly-accepted theory that Bongo Bongo is the man who could see the truth that Shakashi talks about, and some believe he stole the Lens of Truth, which is why his hands are cut off, as that was a common punishment for thievery in many cultures. Bongo Bongo was imprisoned under the Kakariko Village well, before he escaped to the Shadow Temple, where Impa attempted to seal him and where Link goes to fight him.

Bongo Bongo is encountered at the end of the Temple, on a giant drum (probably a bongo drum, hence his name). All that Link can see of him is his giant hands, which play an unsettling beat on the drum. When Link uses the Lens of Truth, however, he can see Bongo Bongo's full body, hanging from the ceiling. He has one large red eye surrounded and covered by strange flaps of skin. His main form of attack is using his large, detached hands to grab or clap Link. Link must shoot his hands with an arrow or Longshot to stun him and force him to open his eye, which he then must slash with the Master or Biggoron Sword. Interestingly, shooting his hand with an Ice Arrow freezes it in any position, which causes him to attempt to break the ice, leaving his eye open for attack. Since Link is wielding the Ice Arrows, he cannot also equip the Lens of Truth, meaning he would have to blindly shoot Bongo Bongo's eye, but it is possible. He could also quickly switch to the Fairy Bow and target the eye. There are incredibly numerous combinations of attacks Bongo Bongo can use, but Link's goal is to stun the hands and shoot the eye. Bongo Bongo takes twenty hits from the Master Sword and ten from the Biggoron Sword to be defeated, making it one of the longest, tedious, and difficult bosses in the game.

Trivia

 * The battle draws some notable parallels to the DJ Octavio fight in Splatoon 2, although of course that game came out much later than Ocarina of Time. However, this is just an interesting observation.
 * Once caught in Bongo Bongo's squeezing attack, the player must tap the A button exactly 21 times to escape.