Here is the full list of all 34 Grood achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox One.
Die 1000 times
Die 100 times
Visit the Wind Zone 10 times
Destroy 200 Wind Up Toys
Destroy 250 Rocket Propelled Barrels
Vist the Woods 15 times
Destroy 50 Fat Enemies type 1
Destroy 50 snakes
Destroy 250 Ironfaces
Destroy 200 Paper Planes
Visit the Bamboo Forest 12 times
Destroy 200 Floating Mines
Reach the Philosopher's Path
Destroy 150 Gunners
Destroy 150 Saw Blades
Reach the Junkyard
Reach the Frozen Land
Visit the Coast 3 times
Reach The Swamp
Reach the Abandoned City
Destroy 50 Fat Enemies type 2
Visit the Desert 6 times
Destroy the Squid Boss
Destroy the Brain Boss
Destroy 150 Pulsing Enemies
Destroy all the enemies of the Wall
Cause 100 million dollars in damage
Cause 10 billion dollars in damage
Cause 1 billion dollars in damage
Destroy the Squid Boss in less than 1 minute
Destroy the Machines Lord
Destroy the Brain Boss in less than 1 minute
Love is stronger than a thousand machines
Destroy the Machines Lord in less than 1 minute