Donkey Kong Country 2: Diddy's Kong Quest cheats and cheat codes for Nintendo Wii

Enable Sound Test:
Highlight Two Player contest and press Down, Down, Down, Down, Down.

Enable cheat mode:
First enable the Sound test by highlighting Two Player contest and pressing 
Down five times, then press Down another five times to activate the cheat 
mode. Now you can enter the following cheats:

Get 50 lives:
Press Y, A, Select, A, Down, Left, A, Down while the cheat mode is activated.

Unlock hard mode:
Press B, A, Right, Right, A, Left, A, X while the cheat mode is activated.

Display Cranky's score and coin total:
Repeatedly press L, R at the map screen.


Unlock Lost World:
You must pass the first world to unlock the Lost World.
In the all the other worlds, you will start to find a "Klubba's Koisk" in 
each world. When you visit one, a Kremling named Klubba will ask you to give 
him 15 Kremcoins to enter The Lost World. To unlock a particular level of
the Lost World, you have to give 15 Kremcoins to Klubba in the indicated world.

Level - Task:
Klobber Karnage Level - Give 15 Kremcoins to Klubba in "Krazy Kremland" 
Jungle Jinx Level - Give 15 Kremcoins to Klubba in "Crocodile Cauldron" 
Fiery Furnace Level - Give 15 Kremcoins to Klubba in "Gloomy Gulch" 
Black Ice Battle Level - Give 15 Kremcoins to Klubba in "Krem Quay" 
Animal Antics Level - Give 15 Kremcoins to Klubba n "K. Rool Keep" 
Krocodile Kore Boss - Complete the game and all 5 Lost World levels. 

Getting 75 Kremlin coins
In Pirate Panic, go into K.Rool's cabin but do not pick up the balloon, 
then leave. Jump over the first 2 bananas, then pick up the next bunch 
on top of the barrels. Go back to K.Rool's cabin, but avoid the
first pair of bananas. When you are in the cabin, collect the ballon.
Leave the cabin and go and jump over the same 2 bananas, then pick up 
the same bunch on top of the barrels. Go back to K.Rool's cabin, but avoid 
the first pair of bananas. You'll see a floating Kremcoin in the air. Grab 
it to collect all 75 Kremlin Coins.