DK64 B Locker Cheat Code

It's been known you could make the homing ammo sound in the level lobbies of DK64 for at least a year. This was initially explained in Bismuth's explanation video on the DK64 TAS released on March 6, 2020. The segment on this is here: https://www.youtube.com/watch?v=QKsRNoLyXO8&t=2595s

As explained in the video, it was understood that you had to press all 4 D Pad directions at the same time to execute the glitch. However, on December 24 2020, Ballaam posted in the DK64 discord that you can actually activate the homing sound glitch by pressing D-Up, D-Down, D-Left, D-Right in that order.

On December 25 2020, Ballaam discovered that the button combination is linked to an impossible to activate cheat code initially, but a few minutes later discovered that you can activate a cheat code to make the Helm B Locker let you through with 80 GBs by doing the following:
1. Press D-Up, D-Down, D-Left, D-Right. If successful, the homing sound will play
2. Primape Punch B Locker. B Locker will change its number from 100 to 80

On December 28 2020, zorulda discovered that the cheat can be activated in any level lobby except Japes, as long as you have a certain amount of Golden Bananas and are the kong that enters the boss fight in the level you want to enter:
Aztec - 3 GBs as Diddy
Factory - 10 GBs as Tiny
Galleon - 20 GBs as Lanky
Forest - 35 GBs as Chunky
Caves - 50 GBs as DK
Castle - 65 GBs as Lanky

For these B Lockers, you do not need to Primape Punch it, simply enter the aforementioned button combination on the D Pad then talk to B Locker.