Donkey Kong 64 Codes -

Camera:
Use Tiny and shrink to enter the fairy-shaped stone building in the main hub. Collect the camera to start photographing the Banana Fairies hidden in the game and unlock the "Mystery Menu" options.

DK Theater:
Find and photograph two Banana Fairies to unlock the DK Theater option at the "Mystery Menu". This option allows all the animation sequences to be viewed.

DK Bonus stages:
Find and photograph six Banana Fairies, then locate Rambi the rhino, and Enguarde the swordfish to unlock their bonus stages.

Boss battle:
Find and photograph ten Banana Fairies to unlock the Boss Battle option at the "Mystery Menu". This allows any Boss that already has been defeated to be fought again.

Krusha In multi-player:
Find and photograph fifteen Banana Fairies to unlock the Krusha In Multi-Player option at the "Mystery Menu".

Cheat Mode:
Find and photograph all twenty Banana Fairies to unlock the Cheat Mode option at the "Mystery Menu". This allows unlimited items during game play.

Bonus levels:
Find and collect forty Blueprints and bring them to Snide to unlock eight bonus levels (Batty Barrel Bash, Beaver Bother, Big Bug Bash, Krazy Kong Klamor, Kremling Kosh, Peril Path Panic, Searchlight Seek, and Teetering Turtle Trouble).

Kasplut colors:
Look at the hair color of a Kasplut when one is encountered. The color will reveal what color Blueprint he is holding. Green hair indicates a green Blueprint). If the Kasplut has white hair, then he does not have anything (you have already collected that Blueprint).

Another way to find out the color of the blueprints that a Kasplut has is to check the color of the shockwave he sends.

Original Donkey Kong mini-game:
Use a Gorilla-Grab to operate the lever in the Frantic Factory area, then play the original Donkey Kong game. Successfully complete all four stages, then play once more and complete the game to collect the Nintendo Coin. Find and photograph six Banana Fairies to unlock the original Donkey Kong option at the "Mystery Menu".

Jetpac mini-game:
Collect at least fifteen Banana Medals, then visit Cranky to play the Jetpac game. Get 5,000 points in the game to collect the Rareware Coin. Find and photograph six Banana Fairies to unlock the Jetpac option at the "Mystery Menu".

Secret Nintendo and Rareware Scores:
In the Rambi Arena (must have five Fairies), there is a hidden Nintendo and Rareware score.
.

Nintendo: 175 Points
Rareware: 200 Points
Mine: 219 Points

Multi-player mode:
Go to the first level in adventure mode, where you find Diddy. Locate the big pad with King K. Rool's face in front of Funky's Place. Stand on the pad and press . You will be transported to a "battle arena", where you must defeat a group of small enemies. Once the timer runs out, you will receive a crown and have ability to play two multi-player games -- a third-person death match-like game, and a multi-player version of the Battle Arena.

Alternate costumes in multi-player mode:
Press or after selecting a character. This is in the instruction manual, but may be useful to gamers that have rented the game.

Alternate ending sequence:
Successfully complete the game after collecting all bananas to view the normal ending, with an extra sequence with K. Lumsy taking the Kongs for a ride. Successfully complete the game after getting all the collectibles to view the normal ending, K. Lumsy sequence, and an extra sequence featuring Cranky.

Programmer test area:
Unlock Snide's HQ. Press + at the mini-game selection screen at Snide's HQ. You can now play in a hidden area used by the programmers to test the game.

Completing the game:
To fully complete the game you must photograph all twenty Banana Fairies, and complete the regular game of Donkey Kong twice, which is in the Frantic Factory and some other places. When playing the regular Donkey Kong game, use the instead of the . When dodging the barrels, climb halfway up the ladders so that the barrels will pass underneath.

Swim faster:
When swimming above water, hold to swim faster.

Quickly stop swimming:
Press while swimming.

Avoid damage when falling:
When you are high enough to get hurt from falling, press just after you fall off and you reach the ground safely.