The following are known Action Replay Codes for Namco Museum on SEGA Dreamcast (Dreamcast). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

(m)
AF610D27
9657758E
8965DB40
4A095AD1

Max points
1D7342BF
3E55F432

Pacman lives
4773F4E6
73540A9E

Galaga lives
DCB376F6
63DACD64

Points
EE3944EC
ECD5CA9F

Pole position timer
05B32A2C
49A9B234