Donkey Kong 64 Golden Bananas: all 201 and B. Locker totals
How many Golden Bananas are in Donkey Kong 64, how many each level gate needs, and what Medals, Blueprints, Crowns and Fairies unlock.
Original 1999 Nintendo 64 release, which requires the Expansion Pak packaged with it. The 2015 Wii U Virtual Console release offers the same game; later remakes, mods and randomisers are outside this guide.
Illustrated reference

Golden Banana
The main collectible. Count them on the pause screen and spend nothing: B. Locker only checks that you own enough to open the next level.
Golden Banana render from Donkey Kong 64.

Banana Medal
Awarded for 75 bananas of one Kong's colour in a level. Fifteen medals open Jetpac, where 5,000 points earns the Rareware Coin.
Banana Medal model from Donkey Kong 64.

Blueprint
Dropped by defeated Kasplats. Each blueprint matches the colour of the Kong who can carry it to Snide's HQ for a Golden Banana.
Kasplat Blueprint model from Donkey Kong 64.

Battle Crown
Won by surviving Battle Arena challenges found on Battle Arena pads. Four crowns open the crown door in Hideout Helm.
Battle Crown model from Donkey Kong 64.

Banana Fairy
Twenty fairies hide in the game. Photograph them with the Fairy Camera to unlock extras in the Mystery menu.
Banana Fairy model from Donkey Kong 64.

Boss Key
Each boss drops a key. Bring it to K. Lumsy's cage to open new parts of DK Isles; all eight free him for the finale.
A Boss Key appearing after a boss fight in the original N64 game.

Crystal Coconut
Fuel for the Kongs' special moves, such as Strong Kong and the Rocketbarrel Boost.
Crystal Coconut model from Donkey Kong 64.

Banana Coins
Kong-coloured coins spent at Cranky's, Funky's and Candy's shops on moves, weapons and instruments.
The five Kong-coloured Banana Coins from Donkey Kong 64.
How many Golden Bananas are there?

There are 201 Golden Bananas. Each of the seven main levels from Jungle Japes to Creepy Castle holds 25, five for each Kong, and the rest are spread around DK Isles. Hideout Helm itself requires 100 Golden Bananas to enter.
B. Locker requirements
Jungle Japes needs 1 Golden Banana, Angry Aztec 5, Frantic Factory 15, Gloomy Galleon 30, Fungi Forest 50, Crystal Caves 65, Creepy Castle 80 and Hideout Helm 100. Approach B. Locker with enough bananas and he leaves the lobby for good.
Banana Medals and coloured bananas
Collect 75 of one Kong's coloured bananas in a level to earn that Kong's Banana Medal, for 40 medals in total. Fifteen medals let you play Jetpac at Cranky's Lab.
Blueprints and Snide
Kasplats carry 40 Blueprints, one per Kong per level, coloured to show which Kong can take it. Hand them to Snide for a Golden Banana each.
Battle Crowns, Fairies and Crystal Coconuts
Win Battle Arena fights for the 10 Battle Crowns, photograph the 20 Banana Fairies with the Fairy Camera, and collect Crystal Coconuts to power the Kongs' special moves.
Count medals early: the Jetpac and Hideout Helm requirements are easier to meet if you finish each Kong's 75 bananas while you are already in a level.
Picture details
Game artwork belongs to its respective rights holders.
