The following are known Action Replay Codes for Planet of the Apes 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)
169427ac
4f56fe63
847710f6
e5fbf46f

Infinite Health
7c1d5101
3627c6d3

All Flags
21d113fe
4551362c

Inf Pistol Ammo
82831b58
d8a686e8