A handful of toggle commands cover almost every "make me unstoppable" cheat in Fallout: New Vegas. Open the console with the tilde key ~ (see how to open the console), type one of these, and press Enter. Run the same command again to turn it back off.
God mode — tgm
Toggle God Mode. You take no damage, never run out of ammo, and carry unlimited weight.
Demigod mode — tdm
Toggle Demigod Mode. Like god mode for health (you can't die), but you still consume ammo and can be staggered — useful if full god mode feels too weightless.
No-clip — tcl
Toggle Collision. Walk through walls, floors and locked doors, and fly freely — perfect for escaping a spot you're stuck in.
Other essential toggles
- tmm 1 — reveal all map markers.
- tdetect — toggle AI detection so enemies ignore you.
- tcai — toggle combat AI (enemies stop fighting).
- killall — kill every nearby hostile at once.
Browse the complete list of console commands for everything else, including item, perk and quest cheats.