Donkey Kong Land III Cheats for Gameboy
were the 2 tubes are go up to the 2nd 1 on the top and then u will enter a cannon and shoot u then just swim to the right until the second canon
Here's some cheats for at the main menu where it says press start:
Left,left,up,down,right,left,left,down,up,right. All levels unlocked, no dk coins
Down,down,up,left,right unlimited lives
Up,up,down,left,right play matching game
On Sea Shanty approximately half way through the game there is a barrel marked W. Go into this barrel and you will then be transported to the end of the level.