How To Unlock “Call An Ambulance” in White Knuckle

If you’re trying to grab this achievement in White Knuckle, it’s actually pretty simple once you understand what the game wants you to do. This isn’t skill-based — it’s more about setting up the right situation and surviving just long enough.

Step 1 – Start With the Correct Mode

You must begin your run with:

  • Survival Mode modifier enabled

If you don’t do this, nothing you try later will count.
A lot of people miss this and wonder why the achievement doesn’t trigger.

Step 2 – Gather the Required Items

Before attempting it, make sure you have:

  • 2–3 explosive rebar (armatures)
  • 1–2 cans of beans

Why these matter:

  • Rebar → deals damage to yourself
  • Beans → lets you heal and repeat the process

You’re basically creating a controlled self-damage loop.

Step 3 – Damage Yourself (Controlled Way)

Now the actual trigger method:

  1. Throw a rebar directly under yourself
  2. Take the damage
  3. Immediately eat one can of beans to heal

Repeat:

  1. Throw another rebar under yourself
  2. Heal again

If the achievement hasn’t popped yet:

  1. Use a third rebar

What’s Actually Happening

The game is checking for a very specific condition:

  • You take repeated heavy damage
  • But you keep recovering instead of dying

That combination triggers the achievement.

Important Tips

  • Don’t spam everything at once → you’ll just die
  • Always heal between hits
  • Make sure you’re actually standing on the rebar when it explodes
  • If it doesn’t trigger after 2 hits, go for the third

This is one of those achievements that sounds confusing… but once you try it, it takes less than a minute.

Set it up properly, take controlled damage, heal, repeat — done.