On the file selection screen, go to erase and hold down SELECT. While holding down SELECT, press B, UP, B, B, A.

Different Background Screen on DK attack
To get a different background screen on DK attack Mode complete every level with the "S" Rank on all of them.

Begin with 50 lives
Go to the select a game menu, highlight 'Erase', then hold the select button and hit B, A, R, R, A, L. Now begin your game and you should start off with 50 lives.

Various Codes
At the main menu select "start" then enter the following codes:
Start with 50 lives: hold select then press B, A, R, R, A, L.

Sound test: hold select then press B, A, L, L, A.

Practice bonus stage: hold select then press B, UP, B, B, A.

Fifty lives
Hold Select and press B, A, R(2), A, L at the game selection screen. A sound will confirm correct code entry. When you start the game, you will now have 50 lives.

Sound player
Hold Select and press B, A, L(2), A, Down at the game selection screen. A sound will confirm correct code entry. The "Sound Player" option will now be unlocked.

In-game reset
Press Start to pause game play, then press Select to exit the current level. Note: This can only be done in levels that have been previously completed.

Hero mode
Successfully complete the game with at least a 90% rank. Start a new game and select two player mode to access the "Hero mode" option. In this mode, you play as Diddy Kong only, with a new costume. There are no Donkey Kong Barrels, Checkpoint Barrels, and pictures.

Alternate Donkey Kong Attack menu screen
Successfully complete all Donkey Kong Attack levels with an "S" rank for a new background on the Donkey Kong Attack menu screen.

Hero Mode
Beat the game with 90% or more to unlock the HERO option under two player mode.

Exit Back To Main Menu
Exit Back To Main Menu Without Turning Off The GBA! or GBA SP! While in any area when you are viewing the map just press "SELECT" and it will ask you if would like to QUIT or NOT.

Behold...Level Warp #1
Go to "Jungle Hijinxs!" which is the very first level. After you "pop" out of your house, go on the floor. Go to where the first "DK" barrel is. Jump on two the first "dirt hill". Wait near the edge until that little beaver goes past the "red flower". Bounce off of him and make sure you fly above the "DK" barrel. A LEVEL WARP should pop-up right next to that tree.

Easy Lives
To get easy lives beat the firstlevel. Once you have done that go back to that level and only go as far as the Expresso coin get that and press start and then select and repeat the process as many times as you want(the more times the more lives.

Another easy way is to use Rambi after you get the G go off the tree to the left when you go into the dich go to your right and run into the wall it will bring you to a "Stop The Barrell" bonus get the coin you want by memorizing the order, Expresso, Rambi, Enguarde, Winky. after you get out of that bonus go to your left and you will be in that same ditch keep going into the bonus and keep getting the same coins. Expressos bonus is the easiest.

A Little Help On Picture Collecting
In the game you can collect pictures of certain enemies and allies. There are up to 19 pictures in all. One way that you can collect more pictures without looking in each level is by going to each one of "Funky's Fishing" and "Candy's Dance Studio!". Successfully complete every one of these in each area by getting a HIGH SCORE and they will give you a picture for each one you have competed. They will also give you some lives and bananas.

Another level warp
In Kongo Jungle the first area of the game goto the second level which is Ropey Rampage, in this level you can find a level warp barrel. The location of this barrel is off the edge of cliff on the other side of the first rope which you would usually climb. Theres a armadillo underneath the rope and a TNT barrel behind you if you havn't thrown it yet. What you do is jump over the edge of the cliff onto the first flower you see.

Example: -----|--- *

The - is ground, | is rope, and * is the flower.

Kool Way To Gain Lives
You must be more than half way done to do this trick!!! Go to "Gorilla Glacier" at the top of the island. From there go to the second level,(Slipslide Ride). At the beganing of the level go forward a little until you see "the blue crocodile". Stay in- front of him while he jumps up the hill. Bounce on top of him and grab the "blue rope". You will then be transfered up. Jump off and go to the left. There you will see a barrel. Pick it up and through it against the way right by you. Go inside and play the "mini-game". Every time you win you get a "gold ostrich". Collect up to three as you would with any other "gold animal" in the game. Once you collect 3 "gold ostriches" you get a "bonus game". THE MORE BANANAS YOU COLLECT, THE MORE LIVES YOU GET!---Repeat this as much as you want.

Snow barrel blast secrets
In the Snow barrel blast region of gorilla glacier, after you see the Rambi token, jump into the barrel to the right. From that barrel, shoot your way right again. This time, shoot your way down to a secret barrel that will take you to the end of the level.

Donkey Kong Country

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How to get stickers

To get Donkey Kong stickers what is needed to do is press down+B and then a sticker will appear you need to get it and if you want to see how the sticker looks like you'll need to search in the sticker book at the menu.

Super Jump

Press B to roll then press A while rolling and you can reach higher things!

Exit Completed Levels

If you are in a level you have already beaten, then press Start then Select.

Many Lives

In Jungle Hijinxs go up in the trees and use long jump. Get the lives. Go back to DK's treehouse, and get that life. It will restart all the lives (except in the treehouse). So you can get many lives. You could also restart it by going in a cave. Then when your done exit out (if you have beaten it).

Fast Lives

This cheat will only work for a short time and will not save.  You also must do this with Donkey Kong and not Diddy.  First, you need to go to the first level.  Turn around and climb up the stairs.  Go into the hut and pick up the 1up balloon.  Then, go out of the hut and jump onto the tree.  If you climb on-top of the hut fist, bananas will come out.  Otherwise, hit B-down to make him slap the ground.  Ten bananas will come out.  Hit B and then A when you get to the edge of the tree to make him roll and jump onto the next tree.  You won't be able to make it if you don't.  Keep hitting B-down when two trees are next to each other.  Every tree won't have them.  Pick up the balloons if you get to the next tree fast enough.  Sometimes you will have to hit B and then A to get to the next tree.  When you see a green balloon, it's a 2up balloon.  If you get it, it signals the end. Jump off and start going left, collecting bananas and a [k]ong on the way.  Watch out for baddies!  W!
hen you get to the beginning, go into the hole, but no farther.  Walk out and everything will be reset.  You can follow these instructions over and over again until you feel you have gained enough life.  Then go to the end of the level.

Level skip

At stop and go station go through the back of the starting place and you will find your self just a tiny bit away from the exit!

 
 

Winky's Walkway - Level Warp

As soon as you've started the level, continue moving until you come acrosss 2 ostriches. Jump on 1 of them to reach Winky's box (the frog) & once you've hopped onto the frog, jump to your left & there should be a "Level Warp" barrel. Enter it. Note: If this is the 1st time you've entered this Level Warp, there should be a camera as you jump over the 1st barrel.