The following are known Action Replay Codes for Namco Museum 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)
77daa95d
2e315ce9
0fb2813e
d578facb

Pacman lives
ee03a379
b803f5bd

Max points
8bb79331
0497452c

Galaga lives
4b9311c6
7d5440c6

Points
14cdd156
d2936b9b

Pole position timer
44271e59
3c821aff