Half-Life
(Last updated January 13, 2005)
Blue Shift Guide
| Effect | Code |
| Invincibility (God Mode) | Otis Loves Dreamcast |
| Get well soon (Full health/not shield) | Dreamcast Loves Headcrabs |
| Shopping trip (All Guns/Ammo) | Dreamcast Ignore Files |
| Unlimited ammunition | Dreamcast Gives Firepower |
| No target mode (nothing attacks you) | Soldiers Ignore Gordon |
| Slow motion mode | Action Ignore Silence |
| Flying mode (Unknown) | Gravity Gives Firepower |
| Xen gravity on earth (Unknown) | Xen Teaches Black Mesa |
Level select (Half-Life):
Choose three words and form the indicated
phrase to advance to the corresponding level.| Level | Code |
| Anomalous Materials | Gordon goes to work |
| Unforseen consequences | Gordon teaches physics |
| Office complex | Files and fear |
| "We've got hostiles" | Soldiers visit Black Mesa |
| Blast pit | Safe and sound |
| Power Up | Big is beautiful |
| On A rail | Trains and rockets |
| Apprehension | Fear finds Gordon |
| Residue Processing | Recycle or die |
| Questionable Ethics | Regression brings progress |
| Surface Tension | Combat and death |
| "Forget about Freeman!" | Soldiers eat tacos |
| Lambda Core | Scientists at work |
| Xen | Fear and gravity |
| Interloper | Panic in Xen |
| Gornarch's Lair | Xenophobia and firepower |
| Nihilanth | Panic and die |
| Endgame | Answers beget questions |
Level select (Blue Shift):
Choose three words and form the indicated
phrase to advance to the corresponding level.| Level | Code |
| Insecurity | Barney goes to work |
| Duty Calls | Red and scary |
| Captive Freight | Combat and trains |
| Focal Point | Barney visits Xen |
| Power Struggle | Power is progress |
| A Leap Of Faith | Physics is beautiful |