CheatCodes.com has all the official Klonoa: Empire of Dreams GBA cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Saturday May 25, 2013 for Klonoa: Empire of Dreams are shown below.
Keep entering the first Hoverboard stage. Get the first life, then keep going until you get to the hill with a sign. Jump to get the second life. Then, head for the finish line, and jump for the last life.
Successfully complete the normal and bonus levels to unlock the EX 2 option.
Successfully complete the game after collecting all the gems to unlock the EX 3 option.
To prevent a loss of a loss of a life, press Start when you have one heart remaining, and select "Retry". You will go back to the door you went through. This is good for health.
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