Full Game Walkthrough...

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
"Bring your child to work" - Day	Collect the Toy Police Car.
A great team!	Collect the Worn Football.
Armed and Ready	Find the shotgun.
Early Grave	Kill the Cage Monster in the Valves section.
Escape Artist	Escape the prison.
Fetch!	Collect the photograph of the family dog.
First Upgrade	Unlock a weapon upgrade for the first time.
Forgiveness	Complete the game.
Fully Upgraded	Fully upgrade a weapon.
Handshot	Shoot a Venus Hand Trap.
Happy Reunion	Retrieve your pistol.
In good hands	Collect the son's family drawing.
Rest in Pieces	Kill the Cage Monster by blowing it up.
Round and round we go	Collect the Toy Carousel.
Science and History	Reach William Blake's Hideout.
Sharp Senses	Survive a minion attack by using your knife.
Touchy Subject	Get grabbed and killed by a big hand.
Trespassing	Enter the hospital building.
What is he made of?!	Try to shoot William Blake.
What's in the hole?	Reach inside a hole in the wall.