Here is the full list of all 39 Paw Paw Paw achievements.
Defeat Warden
Survive The Pit
Defeat The Dark Knights
Get into the city
Defeat 1,000 enemies
Reach level 10 on a character
Hit 10 innocent bystanders
Defeat Worm
Defeat Aegel
Skate off the avalanche
Defeat Baby God
Unlock Welu
Drink 100 potions
Defeat Grillz
Play co-op with 4 Players
Roll 1,000 times
Die 100 times
Reach level 5 on a character
Unlock Obek
Defeat Big Bad Pug
Push the payload
Unlock Doggu
Play co-op
Defeat King Bunnylord III
Defeat Root
Defeat Gragal
Unlock Domba
Ride the Skywhale
Break into the castle
Complete the story mode
Unlock 50 weapons
Unlock 20 legendary weapons
Recruit 50 companions
Spend 500,000 foods
Have 100,000 foods
Throw 100 bombs
Ride 100 mounts
Reach max level on a character
Break 500 chests or barrels