Action Replay Codes [EU]

The following are known Action Replay Codes for Half-Life 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

Unlock Slow Motion
2C291B4D
F8FC3F7E

Unlock Alien Mode
2C291B65
F8FC3F7E

(M)
0E3C7DF2
1645EBB3
0C1AB027
F8A9CB9F

Unlock Invincibility
2C291B05
F8FC3F7E

Unlock Invisibility
2C291B35
F8FC3F7E

Unlock Xen Grav
2C291BED
F8FC3F7E

Unlock Inf Ammo
2C291B1D
F8FC3F7E