The following are known Action Replay Codes for Klonoa: Empire of Dreams on Nintendo Game Boy Advance (GBA).

These are Action Replay Version 3 (V3) Codes.

The codes should work with the region specified but may work for other regions as well.

(m)
4cb0c017
3f93d5e0
f1e8dce2
1073984a

Inf Health
f42ac38c
b1c5b005

Inf Lives
7f817f53
3fc91eaa

Inf Dynamite
738d4616
ec40d25d

AR Button for Slow
dbba3a89
4cb74b94