The following are known Action Replay Codes for KAO the Kangaroo 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)
efd7bc66
3b86ee5e
96f6b630
aac9fa53

Inf Health
e0e092d6
d8b3be70

Inf Lives
33afca6c
0555db1b

Max Coins
592a4fa3
fb00b311

Gloves
46784a18
73c0ef92

Flags
f0588886
7eff1bdd

AR Button for Slow
dbba3a89
4cb74b94