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