The following are known Action Replay Codes for Fire Pro Wrestling on Nintendo Game Boy Advance (GBA).
These codes were also known as GameShark Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

Master Code – Must Be On
9542ec0c
e62b5692
574f404a
7047f0cf

Freeze Round Timer
04229b0b
cee576de

No Round Out/Pin Timer
47d0988d
9954dd0b

Press AR Button: Slow
dbba3a89
4cb74b94