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Part 15
Half-Life: Blue Shift

Part 15

Complete Half-Life: Blue Shift Part 15 walkthrough, including how to reactivate the focus machine and navigate the headcrab tunnel.

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Complete Half-Life: Blue Shift Part 15 walkthrough, including how to reactivate the focus machine and navigate the headcrab tunnel.

Walkthrough
  1. 1
    Drop out of the tunnel into the water, swim across, and jump onto the ledge. Shoot the houndeye on the ledge.
  2. 2
    Run along the ledge to the bottom of a small waterfall. Jump up to the higher ground and shoot the bullsquid.
  3. 3
    Use the rocks to the left of the waterfall to reach the higher ledge. Jump across the water to the next ledge.
  4. 4
    Shoot the houndeye on the next set of jumping stones. Jump up and shoot the headcrab on the rock ahead.
  5. 5
    Look in the water near the headcrab rock for a dead HEV guy with an ammo canister.
  6. 6
    Use the nearby whoosh-thing (a device that propels you upwards) to reach the higher ledge, avoiding the spiky plant.
  7. 7
    Go down the tunnel to reach section ba_xen5.
  8. 8
    Leave the tunnel, turn left, and drop down to the ground.
  9. 9
    Locate a spiky plant with a dead HEV guy and an ammo canister. Quicksave.
  10. 10
    Crouch-walk to get the ammo canister and back up quickly.
  11. 11
    Turn right and go behind the two tall rocky spires to find another dead HEV guy with an ammo canister and a health pack.
  12. 12
    In the center of the area is the focus gadget. Go to the gadget nearer the ground-level cave tunnel and press its power button.
  13. 13
    Go to the other small gadget and wait for it to open.
  14. 14
    Use the two knobs on the gadget one at a time to rotate the parts of the main gadget. Hold the "Use item" key while turning a knob and watch the yellow triangle on the display.
  15. 15
    Get both yellow triangles into their respective red zones. The indicator lights will turn green when successful.
  16. 16
    After completing the left knob, get out the shotgun and quicksave.
  17. 17
    As soon as you finish with the right knob, run to a spot right of the power gadget, facing the cave tunnel.
  18. 18
    When a vort (a type of alien enemy) teleports in, charge it and attack it up close with the shotgun, but do not stand directly against it.
  19. 19
    Quickly run into the cave tunnel and get behind a small crate.
  20. 20
    Wait for another vort to run towards you and start charging up. Duck behind the crate and stay crouched until it is next to you, then attack it with the shotgun. You may need to repeat this for another vort.
  21. 21
    Go to the back of the cave tunnel to find a cave-in.
  22. 22
    Look left of the cave-in for a health pack, and right for another health pack and an openable metal chest.
  23. 23
    Crouch-walk into the chest to get another health pack and an ammo canister.
  24. 24
    Jump onto the lowest rock in the cave-in, then up to the fourth rock.
  25. 25
    Turn to face the tunnel higher up with a glowing yellow crystal. Quicksave.
  26. 26
    Jump to a spot behind the rock on the right side of the tunnel. Crouch there with the pistol ready to shoot a headcrab. If it attacks you, quickrestore (reload your last save).
  27. 27
    Crouch-walk around the rock to the edge of a drop-off with a healing pool below.
  28. 28
    Turn on your flashlight and look for a headcrab on the ground down the tunnel past the pool.
  29. 29
    Crouch-walk along the edge to get its attention if it hasn't seen you.
  30. 30
    After shooting the headcrab, drop into the healing pool and quicksave.
  31. 31
    Start down the tunnel and be prepared for two more headcrabs that are hard to spot until they are in leaping range. Keep quickrestoring until you can shoot them without getting hurt.
  32. 32
    Past the second headcrab is an outdoor area with a bullsquid.
  33. 33
    Crouch-walk along the left side of the tunnel until behind large rocks. Stand up and shoot the bullsquid with the pistol, crouching to avoid its spit.
  34. 34
    Go to the bullsquid's body to trigger two vorts and two alien controllers teleporting in. Quickly run back into the tunnel.
  35. 35
    Move to see the vort on the rocky platform with a spiky plant and shoot it down with the pistol.
  36. 36
    Crouch-walk slowly toward the tunnel exit along the left wall, looking right for an alien controller. Shoot it with the pistol as soon as you see it.
  37. 37
    Do the same for the other alien controller, which appears on the left. Crouch-walk along the right side of the tunnel to see and shoot it.
  38. 38
    Go out to see the vort on the rocky platform on the right, just left of the platform's yellow crystal.
  39. 39
    Quicksave after killing the vort.
  40. 40
    Use the whoosh-thing near the tunnel exit to jump across to the platform with the spiky plant. Try to land without taking damage.
Tips
  • Use quicksave frequently, especially before challenging encounters or difficult jumps.
  • Conserve ammunition by using the pistol for smaller enemies like headcrabs and houndeyes when possible.
  • The healing pool can be used to restore health before proceeding.
  • When fighting vorts and alien controllers, use the environment for cover (press the cover button to crouch behind walls or objects) and to funnel enemies.

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