The following are known Action Replay Codes for Spy Hunter 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)
1e7ab776
dabcda3d
cf2b2cb0
e596ba68

Inf NRG gauge
aa15331d
e69b2ea9

Freeze Timer
4f488dfb
ac03f792

Inf turbo
5f273dc2
47f50397

Slow-mo on button
dbba3a89
4cb74b94

Inf Ammo
17962b17
f7e30796